Geological investigation of palaeotsunamis in the Samoan islands: interim report and research directions

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dc.contributor.authorWilliams, Sen_AU
dc.contributor.authorGoff, JRen_AU
dc.contributor.authorAh Kau, Jen_AU
dc.contributor.authorSale, Fen_AU
dc.contributor.authorChagué-Goff, Cen_AU
dc.contributor.authorDavies, Ten_AU
dc.date.accessioned2015-11-01T02:26:30Zen_AU
dc.date.available2015-11-01T02:26:30Zen_AU
dc.date.issued2013-01-01en_AU
dc.date.statistics2015-10-27en_AU
dc.description.abstractThe Komandorsky seismic gap has distinctive boundaries and a length of 650 km. Its period of “seismic silence” comes close to the maximum recurrence interval for great earthquakes in the Aleutian Island Arc - the stress concentration here probably having reached the critical value. So,estimation of possible earthquake and tsunami characteristics within this gap becomes a significant problem. The closest analog of a similar gap is the area where the 2004 Sumatra-Andaman catastrophic event occurred. Thus, for the present study we used the same modeling scheme as we used for that event. It was assumed that a source length of 650 km, consisting of 9 blocks, and an earthquake with a moment magnitude MW=8.5. Several block motion scenarios were considered. The tsunami generation and propagation in the Pacific Ocean and the possible wave characteristics on near and far-field coasts were estimated. Modeling of such an event showed that the wave heights on different Pacific coasts will vary from 3 to 9 meters. A tsunami wave with a 9-meter height is capable in causing significant loss of human life and economic damage.© 2013, Tsunami Society International.en_AU
dc.identifier.citationWilliams, S., Goff, J., Ah Kau, J., Sale, F., Chagué-Goff, C., & Davies, T. (2013). Geological investigation of palaeotsunamis in the Samoan islands: interim report and research directions. Science of Tsunami Hazards, 32(3), 156-175.en_AU
dc.identifier.govdoc6227en_AU
dc.identifier.issn8755-6839en_AU
dc.identifier.issue3en_AU
dc.identifier.journaltitleScience of Tsunami Hazardsen_AU
dc.identifier.pagination156-175en_AU
dc.identifier.urihttp://tsunamisociety.org/323WilliamsEtAl.pdfen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/6379en_AU
dc.identifier.volume32en_AU
dc.language.isoenen_AU
dc.publisherTsunami Societyen_AU
dc.subjectSeismic effectsen_AU
dc.subjectStress intensity factorsen_AU
dc.subjectPacific Oceanen_AU
dc.subjectTsunamisen_AU
dc.subjectEarthquakesen_AU
dc.subjectAleutian Islandsen_AU
dc.titleGeological investigation of palaeotsunamis in the Samoan islands: interim report and research directionsen_AU
dc.typeJournal Articleen_AU
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