Bulletin of the Seismological Society of America
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Bulletin of the Seismological Society of America; January 2007; v. 97; no. 1A; p. S208-S222; DOI: 10.1785/0120050611
© 2007 Seismological Society of America
This Article
Right arrow Figures Only
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Hébert, H.
Right arrow Articles by Schindelé, F.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation

Numerical Modeling of the Great 2004 Indian Ocean Tsunami: Focus on the Mascarene Islands

H. Hébert1, A. Sladen1 and F. Schindelé1

1 Commissariat à l’Energie Atomique
Département Analyse, Surveillance, Environnement
BP12, 91680 Bruyères-le-Châtel, France

On 26 December 2004, the Mw 9.2 Sumatra earthquake triggered the greatest tsunami ever observed in recent times. The unprecedented quality and variety of observations on modern instruments provide opportunities to refine modeling techniques as well as our perception of tsunami hazard in oceanic regions where historical events are not as frequent as in the Pacific Ocean. We present a numerical modeling of the 2004 tsunami on the Mascarene Islands with refined computations on La Réunion Island, where postevent survey observations and one tide gauge record are available. We use two different source models (models A and B) to account for the observations, and we also test an additional source model (model C) to study the effect of a tsunami originating in the 1833 epicentral area (southern Sumatra). A wave trapped on the edge of La Réunion may explain the greatest water heights reached in the western coastline of the island. The observed tide gauge data are reasonably well fit (models A and B). The run-up data can also be explained with our models. Late disturbances observed in La Pointe des Galets may be explained by a late tsunami reflection from Madagascar or by harbor resonances. Finally we also show that model C (1833-like) strikes La Réunion more heavily than models A and B.




This article has been cited by other articles:


Home page
 Bulletin of the Seismological Society of AmericaHome page
S. L. Bilek, K. Satake, and K. Sieh
Introduction to the Special Issue on the 2004 Sumatra-Andaman Earthquake and the Indian Ocean Tsunami
Bulletin of the Seismological Society of America, January 1, 2007; 97(1A): S1 - S5.
[Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2007 by the Seismological Society of America.