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

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Listed:
  • Sascha Brune
  • Stefan Ladage
  • Andrey Babeyko
  • Christian Müller
  • Heidrun Kopp
  • Stephan Sobolev

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

Suggested Citation

  • Sascha Brune & Stefan Ladage & Andrey Babeyko & Christian Müller & Heidrun Kopp & Stephan Sobolev, 2010. "Submarine landslides at the eastern Sunda margin: observations and tsunami impact assessment," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 54(2), pages 547-562, August.
    • Handle: RePEc:spr:nathaz:v:54:y:2010:i:2:p:547-562
    DOI: 10.1007/s11069-009-9487-8
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    References listed on IDEAS

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    1. Frank Krüger & Matthias Ohrnberger, 2005. "Tracking the rupture of the Mw = 9.3 Sumatra earthquake over 1,150 km at teleseismic distance," Nature, Nature, vol. 435(7044), pages 937-939, June.
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