Long recurrence interval of faulting beyond the 2005 Kashmir earthquake around the northwestern margin of the Indo-Asian collision zone

Abstract

Research Article| September 01, 2008 Long recurrence interval of faulting beyond the 2005 Kashmir earthquake around the northwestern margin of the Indo-Asian collision zone Hisao Kondo; Hisao Kondo * 11Active Fault Research Center, AIST (National Institute of Advanced Industrial Science and Technology), Geological Survey of Japan, Central 7, 1-1-1 Higashi, Tsukuba 305-8567, Japan *E-mail: kondo-h@aist.go.jp. Search for other works by this author on: GSW Google Scholar Takashi Nakata; Takashi Nakata 22Faculty of Environmental Studies, Hiroshima Institute of Technology, 2-1-1 Miyake, Saekiku, Hiroshima 731-5193, Japan Search for other works by this author on: GSW Google Scholar Sardar S. Akhtar; Sardar S. Akhtar 33Geological Survey of Pakistan, Islamabad, Plot No. 84, H-8/1, Islamabad, Pakistan Search for other works by this author on: GSW Google Scholar Steven G. Wesnousky; Steven G. Wesnousky 44Center for Neotectonic Study, University of Nevada, Reno, 1664 North Virginia, Reno, Nevada 89557, USA Search for other works by this author on: GSW Google Scholar Nobuhiko Sugito; Nobuhiko Sugito 55Research Center for Seismology, Volcanology and Disaster Mitigation, Nagoya University, Furocho, Chikusaku, Nagoya 464-8601, Japan Search for other works by this author on: GSW Google Scholar Heitaro Kaneda; Heitaro Kaneda 11Active Fault Research Center, AIST (National Institute of Advanced Industrial Science and Technology), Geological Survey of Japan, Central 7, 1-1-1 Higashi, Tsukuba 305-8567, Japan Search for other works by this author on: GSW Google Scholar Hiroyuki Tsutsumi; Hiroyuki Tsutsumi 66Department of Geophysics, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyoku, Kyoto 606-8502, Japan Search for other works by this author on: GSW Google Scholar Abdul M. Khan; Abdul M. Khan 33Geological Survey of Pakistan, Islamabad, Plot No. 84, H-8/1, Islamabad, Pakistan Search for other works by this author on: GSW Google Scholar Waliullah Khattak; Waliullah Khattak 77Geological Survey of Pakistan, Peshawar, Plot No. 10&11, B-1, Phase-5, Hayatabad, Peshawar, Pakistan Search for other works by this author on: GSW Google Scholar Allah B. Kausar Allah B. Kausar 33Geological Survey of Pakistan, Islamabad, Plot No. 84, H-8/1, Islamabad, Pakistan Search for other works by this author on: GSW Google Scholar Author and Article Information Hisao Kondo * 11Active Fault Research Center, AIST (National Institute of Advanced Industrial Science and Technology), Geological Survey of Japan, Central 7, 1-1-1 Higashi, Tsukuba 305-8567, Japan Takashi Nakata 22Faculty of Environmental Studies, Hiroshima Institute of Technology, 2-1-1 Miyake, Saekiku, Hiroshima 731-5193, Japan Sardar S. Akhtar 33Geological Survey of Pakistan, Islamabad, Plot No. 84, H-8/1, Islamabad, Pakistan Steven G. Wesnousky 44Center for Neotectonic Study, University of Nevada, Reno, 1664 North Virginia, Reno, Nevada 89557, USA Nobuhiko Sugito 55Research Center for Seismology, Volcanology and Disaster Mitigation, Nagoya University, Furocho, Chikusaku, Nagoya 464-8601, Japan Heitaro Kaneda 11Active Fault Research Center, AIST (National Institute of Advanced Industrial Science and Technology), Geological Survey of Japan, Central 7, 1-1-1 Higashi, Tsukuba 305-8567, Japan Hiroyuki Tsutsumi 66Department of Geophysics, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyoku, Kyoto 606-8502, Japan Abdul M. Khan 33Geological Survey of Pakistan, Islamabad, Plot No. 84, H-8/1, Islamabad, Pakistan Waliullah Khattak 77Geological Survey of Pakistan, Peshawar, Plot No. 10&11, B-1, Phase-5, Hayatabad, Peshawar, Pakistan Allah B. Kausar 33Geological Survey of Pakistan, Islamabad, Plot No. 84, H-8/1, Islamabad, Pakistan *E-mail: kondo-h@aist.go.jp. Publisher: Geological Society of America Received: 16 Apr 2008 Revision Received: 24 May 2008 Accepted: 31 May 2008 First Online: 02 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 © 2008 Geological Society of America Geology (2008) 36 (9): 731–734. https://doi.org/10.1130/G25028A.1 Article history Received: 16 Apr 2008 Revision Received: 24 May 2008 Accepted: 31 May 2008 First Online: 02 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 Hisao Kondo, Takashi Nakata, Sardar S. Akhtar, Steven G. Wesnousky, Nobuhiko Sugito, Heitaro Kaneda, Hiroyuki Tsutsumi, Abdul M. Khan, Waliullah Khattak, Allah B. Kausar; Long recurrence interval of faulting beyond the 2005 Kashmir earthquake around the northwestern margin of the Indo-Asian collision zone. Geology 2008;; 36 (9): 731–734. doi: https://doi.org/10.1130/G25028A.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 The 2005 Kashmir earthquake in Pakistan occurred on a previously mapped active fault around the northwest margin of the Indo-Asian collision zone. To address the quantitative contribution of the earthquake to plate convergence, we performed paleoseismological trench excavations at Nisar Camp site near Muzaffarabad across the middle section of the 2005 surface rupture. The fault strands exposed in the trench cut late Holocene fluvial deposits and record evidence of both the 2005 and a penultimate event, supported by the presence of colluvial deposits and a downdip increase in displacement along the fault strands. The 2005 event produced a net slip of 5.4 m, and the penultimate earthquake exhibits a similar amount of slip. Radiocarbon ages and historical accounts loosely constrain the timing of the penultimate event between 500 and 2200 yr B.P.; however, the exposed section encompasses ~4 k.y. of stratigraphy, suggesting an average interevent interval of ~2 k.y. for the 2005 type events. We thus conclude that the 2005 event did not occur on the plate boundary megathrusts, but on intraplate active faults within the Sub-Himalaya. Consequently, the accumulated elastic strain around the complex northwestern margin of the Indo-Asian collision zone has not been significantly released by the 2005 earthquake. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.