Tsunamigenic predecessors to the 2009 Samoa earthquake

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dc.contributor.authorOkal, EAen_AU
dc.contributor.authorBorrero, JCen_AU
dc.contributor.authorChagué-Goff, Cen_AU
dc.date.accessioned2011-12-13T23:47:22Zen_AU
dc.date.available2011-12-13T23:47:22Zen_AU
dc.date.issued2011-07-01en_AU
dc.date.statistics2011-12-14en_AU
dc.description.abstractWe analyze historical earthquakes of the past century having generated regional tsunamis in Samoa, by means of epicentral relocation and quantification of spectral amplitudes of waveforms from historical seismograms. The only tsunami with a level of destruction comparable to the 2009 event was generated by the earthquake of 26 June 1917 in the Samoa corner. Yet, a memory of this event is largely absent from the ancestral heritage of the present population of Samoa, which we tentatively attribute to the nearly simultaneous occurrence of the influenza epidemic in 1918. While not able to fully resolve focal geometries, we document a diversity of mechanisms, which add an element of unpredictability to the forecast of any future tsunami in the region. (C) 2011 Published by Elsevier B.V.en_AU
dc.identifier.citationOkal, E.A., Borrero, J.C., Chague-Goff, C. (2011). Tsunamigenic predecessors to the 2009 Samoa earthquake. Earth-Science Reviews, 107(1-2), 128-140. doi:10.1016/j.earscirev.2010.12.007en_AU
dc.identifier.govdoc3909en_AU
dc.identifier.issn0012-8252en_AU
dc.identifier.issue1-2en_AU
dc.identifier.journaltitleEarth-Science Reviewsen_AU
dc.identifier.pagination128-140en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.earscirev.2010.12.007en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/3946en_AU
dc.identifier.volume107en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectEarthquakesen_AU
dc.subjectSeismicityen_AU
dc.subjectTsunamisen_AU
dc.subjectInfluenzaen_AU
dc.subjectGeometryen_AU
dc.subjectForecastingen_AU
dc.titleTsunamigenic predecessors to the 2009 Samoa earthquakeen_AU
dc.typeJournal Articleen_AU
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