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                                Poster of the L'Aquila, Italy Earthquake of 06 April 2009 - Magnitude 6.3
By Region
                                 Tectonic Summary                                                                    Downloads

                                The April 6th 2009 earthquake in Central Italy occurred as a result of normal
                                faulting on a NW-SE oriented structure in the central Apennines, a mountain belt
                                that runs from the Gulf of Taranto in the south to the southern edge of the Po
                                basin in northern Italy. Geologically, the Apennines are largely an accretionary
                                wedge formed as a consequence of subduction. This region is tectonically and
                                geologically complex, involving both subduction of the Adria micro-plate beneath
                                the Apennines from east to west, continental collision between the Eurasia and
                                Africa plates building the Alpine mountain belt further to the north and the
                                opening of the Tyrrhenian basin to the west. The evolution of this system has
                                caused the expression of all different tectonic styles acting at the same time in
                                a broad region surrounding Italy and the central Mediterranean. The April 6th,
                                2009 earthquake is related to normal faulting and the east-west extensional
                                                                                                                        Low
                                tectonics that dominate along the entire Apennine belt, primarily a response to
                                the Tyrrhenian basin opening faster than the compression between the Eurasian           Medium
                                and African plates.                                                                     High JPG | PDF

                                The central Apennine region has experienced several significant earthquakes in       Settings
                                recorded history. In 1997, a significant Mw 6.0 earthquake 85 km north-
                                northwest of the April 6th 2009 event killed 11, injured over 100 and destroyed     The posters may be downloaded for viewing or for
                                approximately 80,000 homes in the Marche and Umbria regions. This 1997 event        printing on a color plotter. Adobe PDF (.pdf) format
                                was part of a series of earthquakes known as the Umbria-Marche seismic              files are provided. Adobe Acrobat 6.0 or higher is
                                sequence, which included eight events of magnitude greater than M5.0 in a two-      required for viewing the PDF file on a computer
                                month period between September and November of that year.                           monitor and for printing the PDF map graphic.
                                                                                                                    Attention MAC users: If you have problems viewing
                                                                                                                    the pdf files, please download the pdf file and view it
                                                                                                                    in the lastest verion of Adobe Acrobat.



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Page Last Modified: October 15, 2009 16:10:29 UTC




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