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Evidence for Tear Faulting from New Constraints of the 23 October 2011 Mw 7.1 Van, Turkey, Earthquake Based on InSAR, GPS, Coastal Uplift, and Field Observations

2018; Seismological Society of America; Volume: 108; Issue: 4 Linguagem: Inglês

10.1785/0120170314

1943-3573

Ahmet M. Akoğlu, Sigurjón Jónsson, Teng Wang, Ziyadin Çakır, Uğur Doğan, Semih Ergintav, Batuhan Osmanoğlu, Guangcai Feng, Cengiz Zabcı, Alpay Özdemir, Ö. Emre,

Seismic Waves and Analysis

Research Article| July 03, 2018 Evidence for Tear Faulting from New Constraints of the 23 October 2011 Mw 7.1 Van, Turkey, Earthquake Based on InSAR, GPS, Coastal Uplift, and Field Observations Ahmet M. Akoğlu; Ahmet M. Akoğlu aKing Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia, akoglua@itu.edu.trsigurjon.jonsson@kaust.edu.saiNow at Istanbul Technical University, Department of Geology, Ayazağa Yerleşkesi, Sarıyer 34469, Istanbul, Turkey. Search for other works by this author on: GSW Google Scholar Sigurjón Jónsson; Sigurjón Jónsson aKing Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia, akoglua@itu.edu.trsigurjon.jonsson@kaust.edu.sa Search for other works by this author on: GSW Google Scholar Teng Wang; Teng Wang bEarth Observatory of Singapore (EOS), Nanyang Technological University, 50 Nanyang Avenue, Block N2‐01a‐15, Singapore 639798, Republic of Singapore, wang.teng@ntu.edu.sg Search for other works by this author on: GSW Google Scholar Ziyadin Çakır; Ziyadin Çakır cDepartment of Geology, Faculty of Mines, Istanbul Technical University, Ayazağa Yerleşkesi, Sarıyer 34469, Istanbul, Turkey, ziyadin.cakir@itu.edu.trzabci@itu.edu.tr Search for other works by this author on: GSW Google Scholar Ugur Dogan; Ugur Dogan dDepartment of Geomatics, Yıldız Technical University, Davutpaşa Yerleşkesi, Esenler 34220, Istanbul, Turkey, dogan@yildiz.edu.tralpayoz@yildiz.edu.tr Search for other works by this author on: GSW Google Scholar Semih Ergintav; Semih Ergintav eDepartment of Geodesy, Kandilli Observatory and Earthquake Research Institute, Boğaziçi University, Çengelköy 34684, Istanbul, Turkey, semih.ergintav@boun.edu.tr Search for other works by this author on: GSW Google Scholar Batuhan Osmanoğlu; Batuhan Osmanoğlu fNASA Goddard Space Flight Center, Greenbelt, Maryland 20771, batuhan.osmanoglu@nasa.gov Search for other works by this author on: GSW Google Scholar Guangcai Feng; Guangcai Feng gSchool of Geosciences and Info‐Physics, Central South University, Changsha 410083, China, fredgps@csu.edu.cn Search for other works by this author on: GSW Google Scholar Cengiz Zabcı; Cengiz Zabcı cDepartment of Geology, Faculty of Mines, Istanbul Technical University, Ayazağa Yerleşkesi, Sarıyer 34469, Istanbul, Turkey, ziyadin.cakir@itu.edu.trzabci@itu.edu.tr Search for other works by this author on: GSW Google Scholar Alpay Özdemir; Alpay Özdemir dDepartment of Geomatics, Yıldız Technical University, Davutpaşa Yerleşkesi, Esenler 34220, Istanbul, Turkey, dogan@yildiz.edu.tralpayoz@yildiz.edu.tr Search for other works by this author on: GSW Google Scholar Ömer Emre Ömer Emre hFugro Sial Ltd., Farabi Sokak 40/4, 06680 Ankara, Turkey, o.emre@fugro.com Search for other works by this author on: GSW Google Scholar Bulletin of the Seismological Society of America (2018) 108 (4): 1929–1946. https://doi.org/10.1785/0120170314 Article history first online: 03 Jul 2018 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Ahmet M. Akoğlu, Sigurjón Jónsson, Teng Wang, Ziyadin Çakır, Ugur Dogan, Semih Ergintav, Batuhan Osmanoğlu, Guangcai Feng, Cengiz Zabcı, Alpay Özdemir, Ömer Emre; Evidence for Tear Faulting from New Constraints of the 23 October 2011 Mw 7.1 Van, Turkey, Earthquake Based on InSAR, GPS, Coastal Uplift, and Field Observations. Bulletin of the Seismological Society of America 2018;; 108 (4): 1929–1946. doi: https://doi.org/10.1785/0120170314 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 SocietyBulletin of the Seismological Society of America Search Advanced Search Abstract The 23 October 2011 Mw 7.1 Van earthquake in eastern Turkey took place on a previously unknown thrust fault, causing over 600 fatalities and extensive damage mainly in Van city and the northern town of Erciş. Several coseismic models have already been published after the earthquake using the available seismological and geodetic data. These studies generally agree on a coseismic rupture on a north‐dipping east–west‐trending blind‐thrust fault comprising one or two subparallel segments and the existence of a shallow slip deficit. Here, by introducing an additional coseismic pixel‐offset dataset from the TerraSAR‐X satellite, we conclude that a NNE–SSW‐trending left‐lateral tear fault that bounds the rupture to the east also slipped both during and after the mainshock, which is in agreement with both field observations and postseismic Global Positioning System (GPS) measurements. This has important implications for the seismic hazard analysis of the region as the extent and geometry of the rupture that we infer differ significantly from those previously proposed. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.