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| Titel |
Tsunamigenic earthquakes in the Gulf of Cadiz: fault model and recurrence |
| VerfasserIn |
L. M. Matias, T. Cunha, A. Annunziato, M. A. Baptista, F. Carrilho |
| 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 ; 13, no. 1 ; Nr. 13, no. 1 (2013-01-04), S.1-13 |
| Datensatznummer |
250011710
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| Publikation (Nr.) |
 copernicus.org/nhess-13-1-2013.pdf |
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| Zusammenfassung |
| The Gulf of Cadiz, as part of the Azores-Gibraltar plate boundary, is
recognized as a potential source of big earthquakes and tsunamis that may
affect the bordering countries, as occurred on 1 November 1755. Preparing
for the future, Portugal is establishing a national tsunami warning system
in which the threat caused by any large-magnitude earthquake in the area is
estimated from a comprehensive database of scenarios. In this paper we
summarize the knowledge about the active tectonics in the Gulf of Cadiz and
integrate the available seismological information in order to propose the
generation model of destructive tsunamis to be applied in tsunami warnings.
The fault model derived is then used to estimate the recurrence of large
earthquakes using the fault slip rates obtained by Cunha et al. (2012) from
thin-sheet neotectonic modelling. Finally we evaluate the consistency of
seismicity rates derived from historical and instrumental catalogues with
the convergence rates between Eurasia and Nubia given by plate kinematic
models. |
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