Assessing the threat to Western Australia from tsunami generated by earthquakes along the Sunda Arc

David Burbidge () and Phil Cummins

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2007, vol. 43, issue 3, 319-331

Abstract: A suite of tsunami spaced evenly along the subduction zone to the south of Indonesia (the Sunda Arc) were numerically modelled in order to make a preliminary estimate of the level of threat faced by Western Australia from tsunami generated along the Arc. Offshore wave heights from these tsunami were predicted to be significantly higher along the northern part of the west Australian coast than for the rest of the coast south of the town of Exmouth. In particular, the area around Exmouth may face a higher tsunami hazard than other areas of the West Australian coast nearby. Large earthquakes offshore of Java and Sumbawa are likely to be a greater hazard to WA than those offshore of Sumatra. Our numerical models indicate that a magnitude 9 or above earthquake along the eastern part of the Sunda Arc has the potential to significantly impact a large part of the West Australian coastline. Copyright Springer Science+Business Media, Inc. 2007

Keywords: Tsunami deterministic hazard assessment; Western Australia; Sunda Arc subduction zone; Tsunami numerical propagation model; Subduction zone earthquakes (search for similar items in EconPapers)
Date: 2007
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DOI: 10.1007/s11069-007-9116-3

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