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The 12 November 2017 M-w 7.3 Ezgeleh-Sarpolzahab (Iran) Earthquake and Active Tectonics of the Lurestan Arc
Nissen, Edwin1,2; Ghods, Abdolreza3; Karasozen, Ezgi2; Elliott, John R.4; Barnhart, William D.5; Bergman, Eric A.6; Hayes, Gavin P.7; Jamal-Reyhani, Mohammadreza3; Nemati, Majid8,9; Tan, Fengzhou1; Abdulnaby, Wathiq10; Benz, Harley M.7; Shahvar, Mohammad P.11; Talebian, Morteza12; Chen, Ling13
2019-02-01
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
ISSN2169-9313
Volume124Issue:2Pages:2124-2152
AbstractThe 12November2017 M(w)7.3 Ezgeleh-Sarpolzahab earthquake is the largest instrumentally recorded earthquake in the Zagros Simply Folded Belt by a factor of approximate to 10 in seismic moment. Exploiting local, regional, and teleseismic data and synthetic aperture radar interferometry imagery, we characterize the rupture, its aftershock sequence, background seismicity, and regional tectonics. The mainshock ruptured slowly (approximate to 2km/s), unilaterally southward, for approximate to 40km along an oblique (dextral-thrust) fault that dips approximate to 14 degrees E beneath the northwestern Lurestan arc. Slip is confined to basement depths of approximate to 12-18km, resolvably beneath the sedimentary cover which is approximate to 8km thick in this area. The gentle dip angle and basement location allow for a broad slip area, explaining the large magnitude relative to earthquakes in the main Fars arc of the Zagros, where shallower, steeper faults are limited in rupture extent by weak sedimentary layers. Early aftershocks concentrate around the southern and western edges of the mainshock slip area and therefore cluster in the direction of rupture propagation, implying a contribution from dynamic triggering. A cluster of events approximate to 100km to the south near Mandali (Iraq) reactivated the approximate to 50 degrees dipping Zagros Foredeep Fault. The basement fault responsible for the Ezgeleh-Sarpolzahab earthquake probably accounts for the approximate to 1 km elevation contrast between the Lurestan arc and the Kirkuk embayment but is distinct from sections of the Mountain Front Fault that define frontal escarpments elsewhere in the Zagros. It may be related to a seismic interface underlying the central and southern Lurestan arc, and a key concern is whether or not the more extensive regional structure is also seismogenic.
DOI10.1029/2018JB016221
Funding OrganizationNational Science Foundation ; National Science Foundation ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; Canada Foundation for Innovation ; Canada Foundation for Innovation ; British Columbia Knowledge Development Fund ; British Columbia Knowledge Development Fund ; Canada Research Chair program ; Canada Research Chair program ; National Aeronautics and Space Administration New Investigators Program ; National Aeronautics and Space Administration New Investigators Program ; Royal Society ; Royal Society ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; IRIS ; IRIS ; University of Arkansas at Little Rock ; University of Arkansas at Little Rock ; Lawrence Livermore National Laboratory ; Lawrence Livermore National Laboratory ; National Science Foundation ; National Science Foundation ; National Science Foundation ; National Science Foundation ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; Canada Foundation for Innovation ; Canada Foundation for Innovation ; British Columbia Knowledge Development Fund ; British Columbia Knowledge Development Fund ; Canada Research Chair program ; Canada Research Chair program ; National Aeronautics and Space Administration New Investigators Program ; National Aeronautics and Space Administration New Investigators Program ; Royal Society ; Royal Society ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; IRIS ; IRIS ; University of Arkansas at Little Rock ; University of Arkansas at Little Rock ; Lawrence Livermore National Laboratory ; Lawrence Livermore National Laboratory ; National Science Foundation ; National Science Foundation ; National Science Foundation ; National Science Foundation ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; Canada Foundation for Innovation ; Canada Foundation for Innovation ; British Columbia Knowledge Development Fund ; British Columbia Knowledge Development Fund ; Canada Research Chair program ; Canada Research Chair program ; National Aeronautics and Space Administration New Investigators Program ; National Aeronautics and Space Administration New Investigators Program ; Royal Society ; Royal Society ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; IRIS ; IRIS ; University of Arkansas at Little Rock ; University of Arkansas at Little Rock ; Lawrence Livermore National Laboratory ; Lawrence Livermore National Laboratory ; National Science Foundation ; National Science Foundation ; National Science Foundation ; National Science Foundation ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; Canada Foundation for Innovation ; Canada Foundation for Innovation ; British Columbia Knowledge Development Fund ; British Columbia Knowledge Development Fund ; Canada Research Chair program ; Canada Research Chair program ; National Aeronautics and Space Administration New Investigators Program ; National Aeronautics and Space Administration New Investigators Program ; Royal Society ; Royal Society ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; IRIS ; IRIS ; University of Arkansas at Little Rock ; University of Arkansas at Little Rock ; Lawrence Livermore National Laboratory ; Lawrence Livermore National Laboratory ; National Science Foundation ; National Science Foundation
WOS KeywordFOLD-THRUST BELT ; MOUNTAIN FRONT FLEXURE ; ZAGROS SUTURE ZONE ; DEZFUL EMBAYMENT ; PHANTOM EARTHQUAKES ; KIRKUK EMBAYMENT ; STRUCTURAL STYLE ; COLLISION ZONE ; FORELAND BASIN ; SOUTHERN IRAN
Language英语
Funding ProjectNational Science Foundation[EAR 1524815] ; Natural Sciences and Engineering Research Council of Canada[2017-04029] ; Canada Foundation for Innovation ; British Columbia Knowledge Development Fund ; Canada Research Chair program ; National Aeronautics and Space Administration New Investigators Program[NNX16AH53G] ; Royal Society ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB03010802] ; IRIS ; University of Arkansas at Little Rock ; Lawrence Livermore National Laboratory ; National Science Foundation
Funding OrganizationNational Science Foundation ; National Science Foundation ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; Canada Foundation for Innovation ; Canada Foundation for Innovation ; British Columbia Knowledge Development Fund ; British Columbia Knowledge Development Fund ; Canada Research Chair program ; Canada Research Chair program ; National Aeronautics and Space Administration New Investigators Program ; National Aeronautics and Space Administration New Investigators Program ; Royal Society ; Royal Society ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; IRIS ; IRIS ; University of Arkansas at Little Rock ; University of Arkansas at Little Rock ; Lawrence Livermore National Laboratory ; Lawrence Livermore National Laboratory ; National Science Foundation ; National Science Foundation ; National Science Foundation ; National Science Foundation ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; Canada Foundation for Innovation ; Canada Foundation for Innovation ; British Columbia Knowledge Development Fund ; British Columbia Knowledge Development Fund ; Canada Research Chair program ; Canada Research Chair program ; National Aeronautics and Space Administration New Investigators Program ; National Aeronautics and Space Administration New Investigators Program ; Royal Society ; Royal Society ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; IRIS ; IRIS ; University of Arkansas at Little Rock ; University of Arkansas at Little Rock ; Lawrence Livermore National Laboratory ; Lawrence Livermore National Laboratory ; National Science Foundation ; National Science Foundation ; National Science Foundation ; National Science Foundation ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; Canada Foundation for Innovation ; Canada Foundation for Innovation ; British Columbia Knowledge Development Fund ; British Columbia Knowledge Development Fund ; Canada Research Chair program ; Canada Research Chair program ; National Aeronautics and Space Administration New Investigators Program ; National Aeronautics and Space Administration New Investigators Program ; Royal Society ; Royal Society ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; IRIS ; IRIS ; University of Arkansas at Little Rock ; University of Arkansas at Little Rock ; Lawrence Livermore National Laboratory ; Lawrence Livermore National Laboratory ; National Science Foundation ; National Science Foundation ; National Science Foundation ; National Science Foundation ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; Canada Foundation for Innovation ; Canada Foundation for Innovation ; British Columbia Knowledge Development Fund ; British Columbia Knowledge Development Fund ; Canada Research Chair program ; Canada Research Chair program ; National Aeronautics and Space Administration New Investigators Program ; National Aeronautics and Space Administration New Investigators Program ; Royal Society ; Royal Society ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; IRIS ; IRIS ; University of Arkansas at Little Rock ; University of Arkansas at Little Rock ; Lawrence Livermore National Laboratory ; Lawrence Livermore National Laboratory ; National Science Foundation ; National Science Foundation
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000462355800054
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/91086
Collection岩石圈演化国家重点实验室
Corresponding AuthorNissen, Edwin
Affiliation1.Univ Victoria, Sch Earth & Ocean Sci, Victoria, BC, Canada
2.Colorado Sch Mines, Dept Geophys, Golden, CO 80401 USA
3.Inst Adv Studies Basic Sci, Dept Earth Sci, Zanjan, Iran
4.Univ Leeds, Sch Earth & Environm, COMET, Leeds, W Yorkshire, England
5.Univ Iowa, Dept Earth & Environm Sci, Iowa City, IA USA
6.Global Seismol Serv, Golden, CO USA
7.US Geol Survey, Natl Earthquake Informat Ctr, Golden, CO USA
8.Shahid Bahonar Univ Kerman, Dept Geol, Kerman, Iran
9.Shahid Bahonar Univ Kerman, Earthquake Res Ctr, Kerman, Iran
10.Univ Basrah, Dept Geol, Coll Sci, Basrah, Iraq
11.Bldg & Housing Res Network, Rd Housing & Urban Dev Res Ctr, Tehran, Iran
12.Geol Survey Iran, Res Inst Earth Sci, Tehran, Iran
13.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Nissen, Edwin,Ghods, Abdolreza,Karasozen, Ezgi,et al. The 12 November 2017 M-w 7.3 Ezgeleh-Sarpolzahab (Iran) Earthquake and Active Tectonics of the Lurestan Arc[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2019,124(2):2124-2152.
APA Nissen, Edwin.,Ghods, Abdolreza.,Karasozen, Ezgi.,Elliott, John R..,Barnhart, William D..,...&Chen, Ling.(2019).The 12 November 2017 M-w 7.3 Ezgeleh-Sarpolzahab (Iran) Earthquake and Active Tectonics of the Lurestan Arc.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,124(2),2124-2152.
MLA Nissen, Edwin,et al."The 12 November 2017 M-w 7.3 Ezgeleh-Sarpolzahab (Iran) Earthquake and Active Tectonics of the Lurestan Arc".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 124.2(2019):2124-2152.
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