Submarine landslides at the eastern Sunda margin: observations and tsunami impact assessment
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- 作者：Sascha Brune ; Stefan Ladage ; Andrey Y. Babeyko ; Christian M眉ller ; Heidrun Kopp and Stephan V. Sobolev
- 关键词：Submarine landslide ; Tsunami ; Numerical modeling ; Indonesia ; Padang ; Hazard assessment
- 刊名：Natural Hazards
- 出版时间：August 2010
- 出版年：2010
- 期刊代码：33_0921030X
- 类别：soc
- 卷：54
- 期：2
- 页码：547-562
- 数据来源：sp
摘要
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 km鲁 in the Java fore-arc basin up to 20 km鲁 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.