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Inelastic surface deformation during the 2013 M w 7.7 Balochistan, Pakistan, earthquake

2015; Geological Society of America; Linguagem: Inglês

10.1130/g37290.1

1943-2682

Amaury Vallage, Yann Klinger, Raphaël Grandin, Harish S. Bhat, François Pierrot,

Geological and Geochemical Analysis

Research Article| December 01, 2015 Inelastic surface deformation during the 2013 Mw 7.7 Balochistan, Pakistan, earthquake A. Vallage; A. Vallage * 1Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Université Paris Diderot, UMR 7154 CNRS, 1 Rue Jussieu, F-75005 Paris, France *E-mail: vallage@ipgp.fr Search for other works by this author on: GSW Google Scholar Y. Klinger; Y. Klinger 1Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Université Paris Diderot, UMR 7154 CNRS, 1 Rue Jussieu, F-75005 Paris, France Search for other works by this author on: GSW Google Scholar R. Grandin; R. Grandin 1Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Université Paris Diderot, UMR 7154 CNRS, 1 Rue Jussieu, F-75005 Paris, France Search for other works by this author on: GSW Google Scholar H.S. Bhat; H.S. Bhat 1Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Université Paris Diderot, UMR 7154 CNRS, 1 Rue Jussieu, F-75005 Paris, France Search for other works by this author on: GSW Google Scholar M. Pierrot-Deseilligny M. Pierrot-Deseilligny 2IGN, LOEMI, Université Paris-Est, 73 Avenue de Paris, 94165 Saint-Mandé cedex, France Search for other works by this author on: GSW Google Scholar Geology (2015) 43 (12): 1079–1082. https://doi.org/10.1130/G37290.1 Article history received: 24 Aug 2015 rev-recd: 12 Oct 2015 accepted: 14 Oct 2015 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 A. Vallage, Y. Klinger, R. Grandin, H.S. Bhat, M. Pierrot-Deseilligny; Inelastic surface deformation during the 2013 Mw 7.7 Balochistan, Pakistan, earthquake. Geology 2015;; 43 (12): 1079–1082. doi: https://doi.org/10.1130/G37290.1 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 Comprehensive quantification of the near-field deformation associated with an earthquake is difficult due to the inherent complexity of surface ruptures. The A.D. 2013 Mw 7.7 Balochistan (Pakistan) earthquake, dominated by left-lateral motion with some reverse component, ruptured a 200-km-long section of the Hoshab fault. We characterize the coseismic rupture in detail along its entire length. Optical and radar satellite images are combined to derive the full three-dimensional far-field displacement (115 m pixel size) and the high-resolution 2.5 m pixel horizontal displacement field resulting from the earthquake. We show that the vertical deformation is significant in several locations. The high-resolution near-field horizontal displacement (<1 km around the rupture) reveals inelastic shortening at the fault surface significantly larger than expected from simple elastic modeling. A zone of extension in the hanging wall, as much as 1 km wide, concentrating numerous tensile cracks visible in submeter-scale optical images, compensates for this excess shortening. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.