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Five centuries of tsunamis and land-level changes in the overlapping rupture area of the 1960 and 2010 Chilean earthquakes

2014; Geological Society of America; Volume: 42; Issue: 11 Linguagem: Inglês

10.1130/g35830.1

1943-2682

Lisa L. Ely, Marco Cisternas, Robert L. Wesson, Tina Dura,

Geological and Geochemical Analysis

Research Article| November 01, 2014 Five centuries of tsunamis and land-level changes in the overlapping rupture area of the 1960 and 2010 Chilean earthquakes Lisa L. Ely; Lisa L. Ely 1Department of Geological Sciences, Central Washington University, Ellensburg, Washington 98926-7418, USA Search for other works by this author on: GSW Google Scholar Marco Cisternas; Marco Cisternas 2Escuela de Ciencias del Mar, Pontificia Universidad Católica de Valparaíso, 1020 Valparaíso, Chile Search for other works by this author on: GSW Google Scholar Robert L. Wesson; Robert L. Wesson 3U.S. Geological Survey, Denver, Colorado 80225-0046, USA Search for other works by this author on: GSW Google Scholar Tina Dura Tina Dura 4Department of Earth and Environmental Science, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA *Current address: Sea Level Research, Rutgers University, 71 Dudley Road, New Brunswick, New Jersey 08901, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Lisa L. Ely 1Department of Geological Sciences, Central Washington University, Ellensburg, Washington 98926-7418, USA Marco Cisternas 2Escuela de Ciencias del Mar, Pontificia Universidad Católica de Valparaíso, 1020 Valparaíso, Chile Robert L. Wesson 3U.S. Geological Survey, Denver, Colorado 80225-0046, USA Tina Dura *Current address: Sea Level Research, Rutgers University, 71 Dudley Road, New Brunswick, New Jersey 08901, USA 4Department of Earth and Environmental Science, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA Publisher: Geological Society of America Received: 01 May 2014 Revision Received: 19 Aug 2014 Accepted: 27 Aug 2014 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 © 2014 Geological Society of America Geology (2014) 42 (11): 995–998. https://doi.org/10.1130/G35830.1 Article history Received: 01 May 2014 Revision Received: 19 Aug 2014 Accepted: 27 Aug 2014 First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Lisa L. Ely, Marco Cisternas, Robert L. Wesson, Tina Dura; Five centuries of tsunamis and land-level changes in the overlapping rupture area of the 1960 and 2010 Chilean earthquakes. Geology 2014;; 42 (11): 995–998. doi: https://doi.org/10.1130/G35830.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract A combination of geological and historical records from south-central Chile provides a means to address general questions about the stability of megathrust rupture patches and the range of variation expected among earthquakes and tsunamis along a particular stretch of a subduction zone. The Tirúa River estuary (38.3°S) records four large tsunamis and coseismic land-level changes over the past 450 years within the overlapping rupture zones of the great subduction-zone earthquakes of A.D. 1960 (Mw 9.5) and 2010 (Mw 8.8). Sand layers 2 km up the Tirúa River represent the 2010 and 1960 tsunamis and two historical tsunamis, most likely in A.D. 1751 and 1575. Differing land-level changes during these earthquakes likely denote differences in the spatial distribution of slip on the megathrust in both the strike and dip directions within the overlapping rupture zone, with the uplift at Tirúa in 1751 and 2010 probably caused by slip extending farther landward and to greater depth than in 1575 and 1960, which showed subsidence or little change. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.