The future of tsunami research following the 2011 Tohoku-oki event

Simple item page
dc.contributor.authorGoto, Ken_AU
dc.contributor.authorChagué-Goff, Cen_AU
dc.contributor.authorGoff, JRen_AU
dc.contributor.authorJaffe, BEen_AU
dc.date.accessioned2020-10-12T22:56:22Zen_AU
dc.date.available2020-10-12T22:56:22Zen_AU
dc.date.issued2012-12-20en_AU
dc.date.statistics2020-10-13en_AU
dc.description.abstractIn this paper we summarize the regional setting, our previous understanding of historical and pre-historical tsunamis on the Pacific coast of Tohoku, Japan, prior to the 2011 Tohoku-oki tsunami, and our current understanding of the sedimentological, geochemical and paleontological features of the onshore and offshore deposits of the event. Post-tsunami surveys revealed many new insights, such as; (1) the maximum extent of the sand deposit is sometimes only 60% of the inundation distance, (2) the inundation limit can be estimated by geochemical analysis even a few months after the event, (3) a minor amount of marine sediment was transported inland by the tsunami on the Sendai and adjacent plains with the major sediment sources being from beach and dune erosion or vented sediments from liquefaction, although nearshore and offshore surveys revealed that there was a significant amount of sediment transport on the seafloor, (4) coarse gravel deposits (~ 1 m in thickness) were usually thicker than the sand ones (~ 30 cm in thickness), and (5) beach erosion was minimal in some places while severe in others. Another important aspect of this event is that it was a large, infrequent, tsunami that took place where possible predecessors (e.g., AD869 Jōgan) were already known to have occurred based on historical and geological evidence. The AD869 Jōgan tsunami deposits are noticeably similar to the 2011 Tohoku-oki sands, therefore suggesting that the Jōgan and its source mechanism may have been larger than previously thought. While we have learned many lessons from the 2011 Tohoku-oki event, more research is needed to provide reliable tsunami risk assessments around the world. © 2020 Elsevier B.V.en_AU
dc.identifier.citationGoto, K., Chagué-Goff, C., Goff, J., & Jaffe, B. (2012). The future of tsunami research following the 2011 Tohoku-oki event. Sedimentary Geology, 282, 1-13. doi:10.1016/j.sedgeo.2012.08.003en_AU
dc.identifier.issn0037-0738en_AU
dc.identifier.journaltitleSedimentary Geologyen_AU
dc.identifier.pagination1-13en_AU
dc.identifier.urihttps://doi.org/10.1016/j.sedgeo.2012.08.003en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/9896en_AU
dc.identifier.volume282en_AU
dc.language.isoenen_AU
dc.publisherElsevier B.V.en_AU
dc.subjectJapanen_AU
dc.subjectTsunamisen_AU
dc.subjectNatural disastersen_AU
dc.subjectSeasen_AU
dc.subjectSedimentationen_AU
dc.subjectGeochemical surveysen_AU
dc.subjectGeochemistryen_AU
dc.subjectGeologyen_AU
dc.subjectDepositsen_AU
dc.titleThe future of tsunami research following the 2011 Tohoku-oki eventen_AU
dc.typeJournal Articleen_AU
Files
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Journal Articles