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| Titel |
Impact of a tsunami generated at the Lesser Antilles subduction zone on the Northern Atlantic Ocean coastlines |
| VerfasserIn |
J. Roger, A. Frère, H. Hébert |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: Caribbean Waves 2 Conference ; Nr. 38 (2014-07-25), S.43-53 |
| Datensatznummer |
250121296
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| Publikation (Nr.) |
 copernicus.org/adgeo-38-43-2014.pdf |
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| Zusammenfassung |
| On 11 March 2011, a Mw ~ 9.0 megathrust earthquake occurred off
the coast of Tohoku, triggering a catastrophic tsunami reaching heights of 10
m and more in some places and resulting in lots of casualties and
destructions. It is one of a handful of catastrophic tsunamis having occurred
during the last decade, following the 2004 Indonesian tsunami, and leading to
the preparation of tsunami warning systems and evacuation plans all around
the world. In the Atlantic Ocean, which has been struck by two certified
transoceanic tsunamis over the past centuries (the 1755 "Lisbon" and 1929
Grand Banks events), a warning system is also under discussion, especially
for what concerns potential tsunamigenic sources off Iberian Peninsula. In
addition, the Lesser Antilles subduction zone is also potentially able to
generate powerful megathrust ruptures as the 8 February 1843
Mw ~ 8.0/8.5 earthquake, that could trigger devastating
tsunamis propagating across the Northern Atlantic Ocean. The question is in
which conditions these tsunamis could be able to reach the Oceanic Islands as
well as the eastern shores of the Atlantic Ocean, and what could be the
estimated times to react and wave heights to expect? This paper attempts to
answer those questions through the use of numerical modelings and recent
research results about the Lesser Antilles ability to produce megathrust
earthquakes. |
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