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									                        Early Detection of tsunamis in NEA region
            Baptista, M.A. 1,3, R. Omira 1,2 , L. Matias 1,4 , C. Catita 1, F. Carrilho4, E. Toto 2

1 Centro de Geofisica da Universidade de Lisboa, IDL, Portugal, mabaptista@dec.isel.ipl.pt

2 University Ibn Tofail, Faculty of Sciences, Kénitra, Morocco omirarachid10@yahoo.fr

3 Instituto Superior de Engenharia de Lisboa, Portugalmabaptista@dec.isel.ipl.pt

4 Instituto de Meteorologia fernando.carrilho@meteo.pt


The devastating impact of the 26 December 2004 Sumatra tsunami raised a question for scientists on how to
forecast future tsunamis threat. In 2005 the IOC-UNESCO decided to implement a global tsunami warning
system in three main regions: Indian Ocean, Pacific Ocean and North East Atlantic, Mediterranean and
connected seas (NEAM). The Gulf of Cadiz located close to the eastern part of Nubia-Eurasia plate
boundary has been the place of several tsunamis, like the well known event of November 1755. This area,
belonging to the NEAM region, remains up to now as the only zone unprotected by any warning system.
In spite of the fact that seismic and tide gage monitoring constitute an essential tool for tsunami hazard
assessment an improvement in the speed of detection can be achieved using tsunameters, speciall in regions
where travel times are short.
The goal of this study is to design a tsunami detection network in the Gulf of Cadiz. The results show that 25
tide gauge stations and 3 tsunameter sensors are recommended as the minimum number of stations to assure
an acceptable protection to the large coastal population in the Gulf of Cadiz.
This work was funded by NEAREST, 6FP EU project
Additional info
1. M. A. Baptista, R. Omira, L. Matias, C. Catita , F. Carrilho, E. Toto Early Detection of tsunamis in NEA

2. Type of presentation (O –oral, P – poster): Oral
3. Name of corresponding author and full contact details (including post address, phone, fax and email):
Maria Ana Baptista
+351 91 251 7556
FFCUL, Fac de Ciencias Ed C1, 3º piso
Campo Grande
1700 Lisboa


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