Evidence of Strain Accumulation in the Andaman Region for the Giant 2004 Sumatra Andaman Earthquake

Abstract

Brief Report| December 03, 2013 Evidence of Strain Accumulation in the Andaman Region for the Giant 2004 Sumatra Andaman Earthquake Joshi K. Catherine; Joshi K. Catherine aCSIR‐National Geophysical Research Institute, Uppal Road, Hyderabad 500 007, Indiajoshicatherine@yahoo.co.in Search for other works by this author on: GSW Google Scholar Vineet K. Gahalaut; Vineet K. Gahalaut aCSIR‐National Geophysical Research Institute, Uppal Road, Hyderabad 500 007, Indiajoshicatherine@yahoo.co.in Search for other works by this author on: GSW Google Scholar N. Srinivas; N. Srinivas aCSIR‐National Geophysical Research Institute, Uppal Road, Hyderabad 500 007, Indiajoshicatherine@yahoo.co.in Search for other works by this author on: GSW Google Scholar Subhash Kumar; Subhash Kumar bTrimble Navigation India Pvt. Ltd., K511, Indu Aranya, Nagole, Hyderabad 500068, India Search for other works by this author on: GSW Google Scholar B. Nagarajan B. Nagarajan cSurvey of India, retired, Sainikpuri, Hyderabad 500094, India Search for other works by this author on: GSW Google Scholar Author and Article Information Joshi K. Catherine aCSIR‐National Geophysical Research Institute, Uppal Road, Hyderabad 500 007, Indiajoshicatherine@yahoo.co.in Vineet K. Gahalaut aCSIR‐National Geophysical Research Institute, Uppal Road, Hyderabad 500 007, Indiajoshicatherine@yahoo.co.in N. Srinivas aCSIR‐National Geophysical Research Institute, Uppal Road, Hyderabad 500 007, Indiajoshicatherine@yahoo.co.in Subhash Kumar bTrimble Navigation India Pvt. Ltd., K511, Indu Aranya, Nagole, Hyderabad 500068, India B. Nagarajan cSurvey of India, retired, Sainikpuri, Hyderabad 500094, India Publisher: Seismological Society of America First Online: 14 Jul 2017 Online ISSN: 1943-3573 Print ISSN: 0037-1106 Bulletin of the Seismological Society of America (2014) 104 (1): 587–591. https://doi.org/10.1785/0120130141 Article history First Online: 14 Jul 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Joshi K. Catherine, Vineet K. Gahalaut, N. Srinivas, Subhash Kumar, B. Nagarajan; Evidence of Strain Accumulation in the Andaman Region for the Giant 2004 Sumatra Andaman Earthquake. Bulletin of the Seismological Society of America 2013;; 104 (1): 587–591. doi: https://doi.org/10.1785/0120130141 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 We report results of Global Positioning System (GPS) and tide gauge data from the Andaman region that pertain to the period before the 26 December 2004 Sumatra–Andaman earthquake (Mw 9.2). In the preceding 40 years, seismicity in the frontal arc region was generally very low, implying locking of the main thrust zone. The campaign mode GPS data support strain accumulation in the region, corresponding to a slip deficit rate of about 3 cm/year. However, the tide‐gauge data of the preceding three years from the earthquake indicate land subsidence at a rate of about 3.3 cm/year, whereas uplift was expected in the period prior to the earthquake, as the region experienced coseismic subsidence during the earthquake. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.