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

Sascha Brune (), Stefan Ladage, Andrey Babeyko, Christian Müller, Heidrun Kopp and Stephan Sobolev

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2010, vol. 54, issue 2, 547-562

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. Copyright Springer Science+Business Media B.V. 2010

Keywords: Submarine landslide; Tsunami; Numerical modeling; Indonesia; Padang; Hazard assessment (search for similar items in EconPapers)
Date: 2010
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DOI: 10.1007/s11069-009-9487-8

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