Submarine landslides at the eastern Sunda margin: observations and tsunami impact assessment.

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Brune, Sascha, Ladage, Stefan, Babeyko, Andrey Y., Müller, Christian, Kopp, Heidrun and Sobolev, Stephan V. (2010) Submarine landslides at the eastern Sunda margin: observations and tsunami impact assessment. Natural Hazards, 54 (2). pp. 547-562. DOI 10.1007/s11069-009-9487-8.

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Abstract

Our analysis of new bathymetric data reveals six submarine landslides at the eastern Sunda margin between central Java and Sumba Island, Indonesia. Their volumes range between 1 km³ in the Java fore-arc basin up to 20 km³ at the trench off Sumba and Sumbawa. We estimate the potential hazard of each event by modeling the corresponding tsunami and its run-up on nearby coasts. Four slides are situated remarkably close to the epicenter of the 1977 tsunamigenic Sumba M w = 8.3 earthquake. However, comparison of documented tsunami run-up heights and arrival times with our modeling results neither allows us to confirm nor can we falsify the hypothesis that the earthquake triggered these submarine landslides.

Document Type: Article
Keywords: Geodynamics; Submarine landslide; Tsunami; Numerical modeling; Indonesia; Padang; Hazard assessment
Research affiliation: HGF-GFZ
OceanRep > GEOMAR > FB4 Dynamics of the Ocean Floor > FB4-GDY Marine Geodynamics
Refereed: Yes
Open Access Journal?: No
Publisher: Springer
Projects: GITEWS, SINDBAD, Future Ocean
Date Deposited: 14 Dec 2010 11:19
Last Modified: 23 Sep 2019 17:42
URI: https://oceanrep.geomar.de/id/eprint/10527

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