 |
| Titel |
Tsunami hazard assessment of Guadeloupe Island (F.W.I.) related to a megathrust rupture on the Lesser Antilles subduction interface |
| VerfasserIn |
J. Roger, B. Dudon, N. Zahibo |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1561-8633
|
| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 13, no. 5 ; Nr. 13, no. 5 (2013-05-13), S.1169-1183 |
| Datensatznummer |
250018441
|
| Publikation (Nr.) |
 copernicus.org/nhess-13-1169-2013.pdf |
|
|
|
|
|
| Zusammenfassung |
| The French Caribbean Archipelago of Guadeloupe is located over the Lesser
Antilles active subduction zone, where a handful of earthquakes have
reached magnitudes of Mw = 7.0 (moment magnitude) and more. According to available catalogs, these
earthquakes have been able to trigger devastating tsunamis, either directly
by the shake or indirectly by induced landslides. The Guadeloupe Archipelago is
known to have suffered from several violent earthquakes, including the 1843
Mw ~ 8.5 megathrust event. In this study, we discuss the potential impact of
a tsunami generation scenario of a Mw = 8.5 rupture at the subduction
interface using numerical modeling and high resolution bathymetric data
within the framework of tsunami hazard assessment for Guadeloupe. Despite
the fact that the mystery remains unresolved concerning the lack of historical tsunami
data for the 1843 event, modeling results show that the tsunami
impact is not uniformly distributed in the whole archipelago and could show
important maximum wave heights. This is easily explained by the bathymetry
and the presence of several islands around the main island leading to resonance
phenomena, and because of the existence of a fringing coral reef partially surrounding
Guadeloupe Island and its satellites. We then discuss the role of
source parameters, the arrival times and the protective role of fringing
coral reefs surrounding the islands, using tsunami modeling applied on two
Guadeloupian touristic coastal places: Sainte-Anne and Saint-François. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|