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| Titel |
Owen Ridge deep-water submarine landslides: implications for tsunami hazard along the Oman coast |
| VerfasserIn |
M. Rodriguez, N. Chamot-Rooke, H. Hébert, M. Fournier, P. Huchon |
| 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. 2 ; Nr. 13, no. 2 (2013-02-15), S.417-424 |
| Datensatznummer |
250017578
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| Publikation (Nr.) |
 copernicus.org/nhess-13-417-2013.pdf |
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| Zusammenfassung |
| The recent discovery of voluminous submarine landslides along the
Owen Ridge may represent a source of tsunami hazard for the nearby Oman
coast. We assess the severity of this potential hazard by performing
numerical simulations of tsunami generation and propagation from the biggest
landslide (40 km3 in volume) observed along the Owen
Ridge. A finite-difference model, assimilating the landslide to a
visco-plastic flow, simulates tsunami generation. Computation results show
that Salalah city (190 000 inhabitants) is impacted by 2.5 m-high tsunami
waves one hour after sediment failure. Higher wave elevation values (4 m)
are reached in the low populated Sawqara Bay over 80 min after slide
initiation. Although large submarine failures along remote oceanic ridges
are infrequent, this study reveals an underestimated source of tsunami
hazard in the Arabian Sea. |
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