The Hawaiian Islands – integrated approach to understanding

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dc.contributor.authorChagué-Goff, Cen_AU
dc.date.accessioned2015-11-11T00:47:59Zen_AU
dc.date.available2015-11-11T00:47:59Zen_AU
dc.date.issued2013-01-01en_AU
dc.date.statistics2015-11-05en_AU
dc.description.abstractThe Hawaiian Islands, because of their location in the middle of the Pacific Ocean, act as natural ';barometers' for tsunamis generated along the Pacific Ring of Fire, which is the most seismically active area in the world. A multi-proxy study in the remote Pololu valley on the Big Island provided the first evidence for two trans-Pacific events, namely the 1946 and 1957 Aleutian tsunamis. These were identified using radiometric, stratigraphic, microfossil, pollen and geochemical proxies and were corroborated by historical accounts. The islands have been impacted repeatedly by tsunamis in historical times (inc. the recent 2010 Maule and 2011 Tohoku-oki events), and there is strong archaeological evidence for large events affecting humans in prehistory. However, no geological research has yet been carried out, except for some associated with a palaeoecological study on Kauai. Historical evidence shows that tsunamis emanating from the Pacific Ring of Fire have run up to different elevations on different islands within the island chain depending upon their source. Here there is a possible key to understanding some of the key questions about the magnitude and frequency of tsunamis from various parts of the Pacific. Tsunamis from Japan are large on the SW side of the Big Island, those from Alaska seem to have been large in the NE of the island and so on throughout the island chain. A careful site selection from throughout the islands offers a unique opportunity to chart the palaeotsunami record of the Hawaiian Islands while at the same time matching and enhancing the palaeoseismic record of sources in the Pacific Ring of Fire. How big and how often events have occurred in circum-Pacific locations, and how badly they affected other Pacific nations may therefore be addressed by looking in the middle of the Pacific Ocean.en_AU
dc.identifier.citationChagué-Goff, C. (2013). The Hawaiian Islands – integrated approach to understanding. Invited presentation to the American Geophysical Union's (AGU) 46th annual Fall Meeting, San Francisco, California from 9 to 13 December 2013.en_AU
dc.identifier.conferenceenddate13 December 2013en_AU
dc.identifier.conferencenameAmerican Geophysical Union's (AGU) 46th annual Fall Meetingen_AU
dc.identifier.conferenceplaceSan Francisco, Californiaen_AU
dc.identifier.conferencestartdate9 December 2013en_AU
dc.identifier.govdoc6262en_AU
dc.identifier.other#NH41C-03en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/6411en_AU
dc.language.isoenen_AU
dc.publisherAmerican Geophysical Union.en_AU
dc.subjectHawaiien_AU
dc.subjectPacific Oceanen_AU
dc.subjectTsunamisen_AU
dc.subjectRadiometric analysisen_AU
dc.subjectLevelsen_AU
dc.subjectBarometersen_AU
dc.titleThe Hawaiian Islands – integrated approach to understandingen_AU
dc.typeConference Abstracten_AU
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