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http://hdl.handle.net/2122/8959
Authors: | Moro, M.* Cannelli, V.* Chini, M.* Bignami, C.* Melini, D.* Stramondo, S.* Saroli, M.* Kyriakopoulos, C.* Brunori, C. A.* |
Title: | The October 23, 2011, Van (Turkey) earthquake and its relationship with neighboring structures | Journal: | Scientific reports | Series/Report no.: | /4 (2014) | Issue Date: | Feb-2014 | DOI: | 10.1038/srep03959 | Keywords: | TECTONICS SEISMIC SOURCE GEOLOGY SEISMOLOGY GEODYNAMICS InSAR GPS |
Subject Classification: | 04. Solid Earth::04.03. Geodesy::04.03.07. Satellite geodesy 04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics 04. Solid Earth::04.06. Seismology::04.06.06. Surveys, measurements, and monitoring |
Abstract: | The present work reports the analysis of a possible relationship due to stress transfer between the two earthquakes that hit the province of Van, Eastern Turkey, on October 23, 2011 (Mw 5 7.2) and on November 9, 2011 (Mw55.6). The surface displacement field of the mainshock has been obtained through a combined data set made up of differential interferograms from COSMO-SkyMed and ENVISAT satellites,integrated with continuous GPS recordings from the Turkish TUSAGA-AKTIF network. This allowed us to retrieve the geometry and the slip distribution of the seismic source and to compute the Coulomb Failure Function (CFF) variation on the aftershock plane, in order to assess a possible causal relationship between the two events. Our results show that the November 9 earthquake could have been triggered by the October 23 shock, with transferred stress values largely exceeding 1 bar. |
Appears in Collections: | Article published / in press |
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