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Colorado Earthquake and Fault Map

VIEWS: 197 PAGES: 1

									                                                                                                                 COLORADO'S EARTHQUAKE and FAULT MAP
                                                                                                          Showing Locations of Historical Earthquakes and Known or Suspected Geologically Young Faults
                                      109° W                                                                                                                                       W                                         Y                                O                                        M                                          I                                         N                                                                                                                                                                                                                                                   N                 E                   B                  R                    A                    S                K                   A
                                                                                                                                                                                                                                                                                                                                                                                                                                      G
                             41° N
                                                                                                                                                    108° W
                                                                                                                                                                                                                                                         107° W
                                                                                                                                                                                                                                                                                                                                                                           106° W                                                                                                                105° W                                                                                                            104° W
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   103° W
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   JULESBURG
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   41° N                           EARTHQUAKE EPICENTERS
                                                                                                                                                                                                                                                                                                                                !
                                                                                                                                                                                                                                                                                                                                (125
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   PEETZ
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               SEDGWICK
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           OVID

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           £
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           385
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             Instrumentally located epicenters (~1962 to 2006)
                                                                                                                                                                                                     !
                                                                                                                                                                                                     (
                                                                                                                                                                                                     789
                                                                                                                                                                                                                                                                                                                                                                                                                                                              £
                                                                                                                                                                                                                                                                                                                                                                                                                                                              ¤
                                                                                                                                                                                                                                                                                                                                                                                                                                                              287                                                                                                                                                                                                                                                    (
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     !113
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    CROOK                                    SEDGWICK                                                                        Size of dot indicates magnitude.
                                                                                                                                                                                                      (
                                                                                                                                                                                                      !
                                                                                                                                                                                                      13                                                                                                                                                                                                                                                                                                                                                                                   GROVER
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        !
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        (
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        71
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                £
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                ¤
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                138

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          !
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          55                           (
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       !
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       59


                                                                                                                                                                                                                                                                                                                        JACKSON                                                                                             LARIMER                                                                                           £
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              85                                                                                                                                                               LOGAN                       ILIFF
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                                                                                                                                                                                                                                                                                                                                               WALDEN

                                                                                                                                                                                                                                                                                                                                                                                                                            (
                                                                                                                                                                                                                                                                                                                                                                                                                            !
                                                                                                                                                                                                                                                                                                                                                                                                                            14
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     WELLINGTON
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          NUNN                                                                                                                                                                                                                      FLEMING                                                                        !
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                                                                                                                                MOFFAT                                                                                                                                                                                                                                                                                                                                                       (
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             !
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              4-4.9
                                                                                                      !
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                                                                                                                                                                                                                                                                                                                                                             (
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                                                                                                                                                                                                                                                                                                                                                             14
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          (
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          14
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      STERLING
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   §25
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             PIERCE


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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              14        AULT

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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       PHILLIPS
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  HOLYOKE



                                                                                                                                                                                                           CRAIG
                                                                                                                                                                                                                                                                                                                                                                                                                                                                         FORT COLLINS

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   TIMNATH
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  257
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        SEVERANCE
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   EATON
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                                                                                                                                                                                                                                                         40                                                                                                                                                                                                                                                                                                                                                                                                                             MERINO
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     61
                                                                                                                                                                                                                                                          STEAMBOAT SPRINGS

                                                                                                                                                                                                                                                                                                                   !
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               392
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                                                                                                     40
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                                                                                                                                                                                                           317                                                                                                                                                                                                                  ESTES PARK
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                              LOVELAND
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              GREELEY
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    GARDEN CITY
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              Approximate location of pre-instrumental
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                                                                                                                                                                                                                                                                                                             40
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                                                                                                                                                                                                                                                                                                                                                                                                                                            36

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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         34
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         HILLROSE
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              earthquake epicenters (~1867 to 1961). Square
                                      DINOSAUR                                                                                                                                                                                                                                                                                                                                                 34                                                                            BERT HOUD
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 (
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               139                !
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  144
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              size indicates the maximum Modified Mercalli
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 56       JOHNSTOWN                                                                                                                                                                                                                                                  59
                                                                                                                                                                                                                                                       OAK CREEK                                                                                                                                                                 (
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             60
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   GILCREST                                                                                          LOG LANE VILLAGE                                                                                                                                                                        £
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                                                                                                                                                                                                                                                                 131                                                                                                                              GRAND LAKE

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                                         (
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                                         64
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  LYONS              287           MEAD

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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             66
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             PLATTEVILLE
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          WIGGINS

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 MORGAN                                                                                                                                                                                                                                       intensity for the earthquake (see back of map for
                                                                                                                                                                                                                                                                 YAMPA
                                                                                                                                                                                                                                                                                                                                                                                                                                                        !
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              intensity scale).
                                                              RANGELY
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                                                                                                                          64
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                                                                                                                                                                                                                                                                                                                                                                                                                                        72 JAMESTOWN                         (
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      £
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      34


                    40° N
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                                                                                                                                                                                                                                                                                           134                                         HOT SULPHUR SPRINGS

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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          FREDERICK

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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         52
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                                                                                                                                                                                                                                                                                                       GRAND                   KREMMLING
                                                                                                                                                                                                                                                                                                                                                           40
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                                                                                                                                                                                                                                                                                                                                                                                            40
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                                                                                                                                                                                                                                                                                                                                                                                                                                                  119
                                                                                                                                                                                                                                                                                                                                                                                                                                                        BOULDER
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                         7
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         LOCHBUIE
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            NORTHGLENN BRIGHTON
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                                                                                                                                                                                                                                                                                                                                                                                                                        NEDERLAND

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                                                                139                                                                                                                                                                                                                                                                                                                                                                                                                                       THORNTON
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                                                                                                                                                                                                                                                                                                                                                                                                                                                         72

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                                                                                                                                                                                                                                                                                                 131
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         36
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      WEST MINSTER
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       FEDERAL HEIGHTS
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   T
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   S
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   470
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              (
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              !
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              79
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     ADAMS
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    !
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    (
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    71
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       "
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                                                                                                                                                                                                                                                                                                                                                                                                        £
                                                                                                                                                                                                                                                                                                                                                                                                        ¤
                                                                                                                                                                                                                                                                                                                                                                                                        40            Y
                                                                                                                                                                                                                                                                                                                                                                                                                      X CENTRAL CITY
                                                                                                                                                                                                                                                                                                                                                                                                                                            BLACK HAWK
                                                                                                                                                                                                                                                                                                                                                                                                                                                                       !
                                                                                                                                                                                                                                                                                                                                                                                                                                                                       (
                                                                                                                                                                                                                                                                                                                                                                                                                                                                       93        ARVADA


                                                                                                                                                                                                                                                                                                                                                                                                                                                                              WHEAT RIDGE
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           ¦
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           §
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           ¨
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           270                                                                                                                                                                                                                                                                                                                                                                                  )
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                                                                                                                                                                                                                                                                                      §
                                                                                                                                                                                                                                                                                      70
                                                                                                                                                                                                                                                                                                                                                                                                 GEORGETOWN
                                                                                                                                                                                                                                                                                                                                                                                                           EMPIRE
                                                                                                                                                                                                                                                                                                                                                                                                                            IDAHO SPRINGS
                                                                                                                                                                                                                                                                                                                                                                                                                            !
                                                                                                                                                                                                                                                                                                                                                                                                                            (
                                                                                                                                                                                                                                                                                                                                                                                                                            103
                                                                                                                                                                                                                                                                                                                                                                                                                                                 ¦
                                                                                                                                                                                                                                                                                                                                                                                                                                                 §
                                                                                                                                                                                                                                                                                                                                                                                                                                                 ¨70
                                                                                                                                                                                                                                                                                                                                                                                                                                                               £
                                                                                                                                                                                                                                                                                                                                                                                                                                                               ¤
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          ¤
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          £ DENVER
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          6                                                    £
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               ¤
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               287
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         ¨
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         §
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         ¦70        BENNETT                                   £
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              ¤
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              36
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   £
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                                                                                                                                                                                   !
                                                                                                                                                                                   (
                                                                                                                                                                                   325                                                                                                                                                                                                                 SILVER PLUME
                                                                                                                                                                                                                                                                                                                                                                                                                             !
                                                                                                                                                                                                                                                                                                                                                                                                                             (  103
                                                                                                                                                                                                                                                                                                                                                                                                                                                                 ¤
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        ¦225
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       1882 Earthquake; magnitude estimated at
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                             LAKEWOOD
                                                                                                                                                                                                                                                                                                                                                                                                                                                        (
                                                                                                                                                                                                                                                                                                                                                                                                                                                        !
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   _
                                                                                                                                                                                                                                                                              EAGLE                                                                        SILVERTHORNE                                                                                 74                                                                    AURORA
                                                                                                                                                                                                                                                           GYPSUM                                        AVON
                                                                                                                                                                                                                                                                                                                              VAIL
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                                                                                                                                                                                                                                                                                                                                                                SUMMIT £
                                                                                                                                                                                                                                                                                                                                                                       6                                   CLEAR CREEK
                                                                                                                                                                                                                                                                                                                                                                                                                                                                       MORRISON
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                                                                                                                                                                                                                                                                                                                                                                      DILLON
                                                                                                                                                                                                                                                                                                                                                                                                               (
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      S
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      470                                                                               DEER TRAIL

                                                                                                          GARFIELD                                                         RIFLE
                                                                                                                                                                                         SILT
                                                                                                                                                                                                 NEW CASTLE


                                                                                                                                                                                                       GLENWOOD SPRINGS
                                                                                                                                                                                                                                                                                       EAGLE                            MINTURN
                                                                                                                                                                                                                                                                                                                                                                  FRISCO              MONTEZUMA
                                                                                                                                                                                                                                                                                                                                                                                                               5

                                                                                                                                                                                                                                                                                                                                                                                                                                                                              T
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              S
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              470
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           LIT TLETON                        FOXFIELD
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               !
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               (
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               83
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       6.6 +/- 0.6 (Spence and others, 1996)
           H




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           LONETREE

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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   £
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   ¤
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   85




                                                                                                                                                                                                                                                                                                                                                                                                                                                                        N
                                                                                                                                         PARACHUTE
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                                                                                                                                                                                                                                                                                                                                                                       9




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                                                    !
                                                    (
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                                                                                                                               ¨70
                                                                                                                                                                                                                                                                                                                                                      (
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                                                                                                                                                                                                                                                                                                                                                      91
                                                                                                                                                                                                                                                                                                                                                           BLUE RIVER                                                    £
                                                                                                                                                                                                                                                                                                                                                                                                                         ¤
                                                                                                                                                                                                                                                                                                                                                                                                                         285                                                                                                                                                                                                                                                                                                                           (
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       !
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       59
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              £
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              385
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       QUATERNARY FAULTS




                                                                                                                                                                                                                                                                                                                                                                                                                                                               ER
                                                                                                                                                                                                                         CARBONDALE
                                                    139
                                                                                                                DEBEQUE
                                                                                                                                                                                                                                                       BASALT                                                                                                                                                                                                                                    DOUGLAS
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        CASTLE ROCK
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 ELIZABETH
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    KIOWA
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               (
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               !
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               86
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      SEIBERT
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              24          BETHUNE
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 BURLINGTON
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             Geologically young faults that displace sediments




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                                                                                                                                                                                                                                                      !
                                                                                                                                                                                                                                                      82
                                                                                                                                                                                                                                                                                                                          LEADVILLE
                                                                                                                                                                                                                                                                                                                                                                ALMA

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  ¦
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  §
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  ¨25
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                LIMON         GENOA
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   ARRIBA                      FLAGLER

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               §
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               ¨
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               70
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             or rocks deposited during the Quaternary Period
                                                                                                                   !
                                                                                                                   (
                                                                                                                   65
                                                                                                                                       !
                                                                                                                                       (330

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    (approximately past 2 million years).
                                                                                                                                                                                                                                              SNOWMASS VILLAGE              ASPEN                                                                                 FAIRPLAY
                                                     FRUITA

                                                                                                                                                                                                                                                        Y
                                                                                                                                                                                                                                                        X                                                                                                                                               PARK                                                                !
                                                                                                                                                                                                                                                                                                                                                                                                                                                                            (
                                                                                                                                                                                                                                                                                                                                                                                                                                                                            67
           A




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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      (
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      83


                                                                                                                                                                                                                                                                                                                                                                          ¤ !
                                                                                                                                                                                                                                                                                                                                                                          £ ( 9                                                                                                                                                                                                                            SIMLA                                                                      HUGO
                                                                                                     PALISADE                                                                                                                                                                                                                                                             285
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    RAMAH
                                                          GRAND JUNCTION
                                                                                         !
                                                                                         (
                                                                                         141
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       Known or suspected fault displacement of




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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   PALMER LAKE
                                                                                                                                                                                                                                    MARBLE
                                                                                                                                                                                                                                                                                                           !
                                                                                                                                                                                                                                                                                                           (
                                                                                                                                                                                                                                                                                                           82
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                                                                                                          MESA                                                                                                                                                                                                                                                                                                                                                                                             MONUMENT                                                                                                                                                                              ¤
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 287



                                                                                               ¤
                                                                                               £
                                                                                               50                                                                                                                                                                                                                                                                                                                                                                                                                                                                   ¤
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    24
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       CALHAN                                                                                                                                                                                                                                                              39° N
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       late Quaternary deposits (approximately
                                                                                                                                                     (
                                                                                                                                                     !
                                                                                                                                                     65                                                                !
                                                                                                                                                                                                                       (
                                                                                                                                                                                                                       133
                                                                                                                                                                                                                                                                                                                                               £
                                                                                                                                                                                                                                                                                                                                               ¤
                                                                                                                                                                                                                                                                                                                                               24
                                                                                                                                                                                                                                                                                                                                                                                            £
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                                                                                                                                                                                                                                                                                                                                                                                            24                                                                          WOODLAND PARK


                                                                                                                                        CEDAREDGE
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                                                                                                                                                                                                                                                                                                                                                                                                                                                               ¤
                                                                                                                                                                                                                                                                                                                                                                                                                                                               24
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    GREEN MOUNTAIN FALLS
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          LINCOLN
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                (
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                !
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                59
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       past 130,000 years)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           CHEYENNE £
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    ¤
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    385
                                                                                                                                                                                           PAONIA                                                             CRESTED BUTTE                                                                                                                                                                                     TELLER                                                                                                                                                                                                                                                                                                                                                                           £
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 ¤
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 40
                                                                      !
                                                                      (                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                Known or suspected fault displacement of
           T




                                                                      141
                                                                                                                                                ORCHARD CITY       HOTCHKISS
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 (
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 !
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            MANITOU SPRINGS
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        £
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   A
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 67
                                                                                                                                                                                                                                                                                                                                      S a wa




                                                                                                                                                                                                                                                                                                                                              BUENA VISTA
                                                                                                                                                                                                                                                                                                                                      S a wa




                                                                                                                                      DELTA
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   COLORADO SPRINGS
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    287
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       middle to early Quaternary deposits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          KIT CARSON

                                                                                                                                                                                                                                                                                                                         CHAFFEE
                                                                                                                                                                                                                                                                                                                                            ttc h ffau lt




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                                                                                                                                        ¤
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                                                                                                                                                                                                                                                                                                                                                                                                                                                             CRIPPLE CREEK

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       (approximately past 130,000 to 2 million
                                                                                                                                        50                                                 CRAWFORD

                                                                                                                                                                                                                                    GUNNISON                                                                                                                    £
                                                                                                                                                                                                                                                                                                                                                                ¤
                                                                                                                                                                                                                                                                                                                                                                285
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           FOUNTAIN

                                                                                                                               !
                                                                                                                               (
                                                                                                                               348

                                                                                                                                                                                                                                                                      !
                                                                                                                                                                                                                                                                      (                                                                                                                                                                (
                                                                                                                                                                                                                                                                                                                                                                                                                                       !
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                                                                                                                                      OLATHE
                                                                                                                                                                                                !
                                                                                                                                                                                                (
                                                                                                                                                                                                92
                                                                                                                                                                                                                                                                      135                                                                                                                                                              9
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       years old)
                                                                                                                                               £
                                                                                                                                               ¤
                                                                                                                                               550                                                                                                                                                       PITKIN

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  !
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  (
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  115
                                                                                                                                                                                                                                                   GUNNISON                                                                                                       !
                                                                                                                                                                                                                                                                                                                                                                  (291


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                §
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                ¨
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                ¦25




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                                                                                                                                                                                                                                                                                                                                                                             SALIDA
           U




                                                                                         MONTROSE
                                                                                                                                               (
                                                                                                                                               !
                                                                                                                                               90
                                                                                                                                                            MONTROSE

                                                                                                                                                                                   ¤
                                                                                                                                                                                   £
                                                                                                                                                                                   50                                                  ¤
                                                                                                                                                                                                                                       £
                                                                                                                                                                                                                                       50
                                                                                                                                                                                                                                                                                            £
                                                                                                                                                                                                                                                                                            ¤
                                                                                                                                                                                                                                                                                            50
                                                                                                                                                                                                                                                                                                                                            PONCHA SPRINGS
                                                                                                                                                                                                                                                                                                                                                                                                                FREMONT
                                                                                                                                                                                                                                                                                                                                                                                                                                       ¤
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                                                                                                                                                                                                                                                                                                                                                                                                                                       50                            CANON CITY                                                                                                                                                                                                                                            HASWELL
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       EADS


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  !
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  (
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  96
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 SHERIDAN LAKE
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Y
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          X         Permanent Seismic Stations -
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    KIOWA                                                                                                                                           Includes four seismographs currently
                        !
                        (
                        90                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             CROWLEY
                                                          !                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         operated by the U.S. Geological Survey




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                                                          (
                                                          141



                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              fa
                                                                                                                                                                                                                                                                                                                                                                                                                                                             WILLIAMSBURG             FLORENCE




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        ul
                                                                                                                                                                                                                                                                                                                                                                       £
                                                                                                                                                                                                                                                                                                                                                                       ¤
                                                                                                                                                                                                                                                                                                                                                                       285                                                                                             ROCKVALE                                          £
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         ¤
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         50
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                                                                             141
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                                                                                                                                                                                                                                              107° W
                                                                                                                                                                                                                                                                                                                                                                  106° W                                                                                                                         105° W                                                                                                                   104° W
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       Map Compilation by
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       Matthew L. Morgan,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               Colorado Geological Survey,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               2006-2007

								
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