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| Titel |
Tsunami hazard at the Western Mediterranean Spanish coast from seismic sources |
| VerfasserIn |
J. A. Álvarez-Gómez, ĺ. Aniel-Quiroga, M. González, L. Otero |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 11, no. 1 ; Nr. 11, no. 1 (2011-01-28), S.227-240 |
| Datensatznummer |
250009050
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| Publikation (Nr.) |
 copernicus.org/nhess-11-227-2011.pdf |
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| Zusammenfassung |
| Spain represents an important part of the tourism sector in the Western
Mediterranean, which has been affected in the past by tsunamis. Although the
tsunami risk at the Spanish coasts is not the highest of the Mediterranean,
the necessity of tsunami risk mitigation measures should not be neglected. In
the Mediterranean area, Spain is exposed to two different tectonic
environments with contrasting characteristics. On one hand, the Alboran Basin
characterised by transcurrent and transpressive tectonics and, on the other
hand, the North Algerian fold and thrust belt, characterised by compressive
tectonics. A set of 22 seismic tsunamigenic sources has been used to estimate
the tsunami threat over the Spanish Mediterranean coast of the Iberian
peninsula and the Balearic Islands. Maximum wave elevation maps and tsunami
travel times have been computed by means of numerical modelling and we have
obtained estimations of threat levels for each source over the Spanish coast.
The sources on the Western edge of North Algeria are the most dangerous, due
to their threat to the South-Eastern coast of the Iberian Peninsula and to
the Western Balearic Islands. In general, the Northern Algerian sources pose
a greater risk to the Spanish coast than the Alboran Sea sources, which only
threaten the peninsular coast. In the Iberian Peninsula, the Spanish provinces
of Almeria and Murcia are the most exposed, while all the Balearic Islands
can be affected by the North Algerian sources with probable severe damage,
specially the islands of Ibiza and Minorca. The results obtained in this work
are useful to plan future regional and local warning systems, as well as to
set the priority areas to conduct research on detailed tsunami risk. |
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