globalchange  > 气候变化与战略
DOI: 10.1016/j.tecto.2020.228630
论文题名:
Studying postseismic deformation of the 2010–2011 Rigan earthquake sequence in SE Iran using geodetic data
作者: Amiri M.; Mousavi Z.; Atzori S.; Khorrami F.; Aflaki M.; Tolomei C.; Motaghi K.; Salvi S.
刊名: Tectonophysics
ISSN: 00401951
出版年: 2020
卷: 795
语种: 英语
中文关键词: InSAR ; Lut block ; Postseismic deformation ; Rigan earthquake ; Southeastern Iran
英文关键词: Deformation ; Earthquake effects ; Geodesy ; Co-seismic displacement ; Coseismic deformation ; Cumulative number ; Displacement maps ; Earthquake sequences ; Postseismic deformation ; Small baseline subsets ; Temporal evolution ; Faulting ; deformation ; earthquake event ; fault zone ; geodetic network ; ground motion ; seismicity ; spatiotemporal analysis ; synthetic aperture radar ; time series analysis ; Iran ; Kerman [Iran] ; Rigan
英文摘要: In this paper, we study the spatial distribution and temporal evolution of the postseismic deformation of the 2010–2011 Rigan earthquake sequence which occurred at the southern termination of the East Lut fault system, southeast Iran. One-year GPS measurements after the Rigan earthquake sequence reveals right-lateral postseismic displacement along the East Chahqanbar fault and left-lateral postseismic displacement along the South Chahqanbar fault. To investigate the deformation variations in time and space, InSAR time-series of COSMO-SkyMed images is applied using the Small Baseline Subset algorithm. The results confirm a clear cumulative postseismic signal increasing to 8 mm during the first five months following the first mainshock in the direction of the coseismic displacement. The cumulative postseismic displacements are well correlated with the cumulative number of the aftershocks and their associated moment release. Considering this correlation and the observation of a sharp discontinuity along the coseismic fault in the displacement map, it is concluded that the after-slip mechanism is responsible for the observed postseismic deformation in the study region. This study is the first observation of a short-term postseismic motion in eastern Iran through geodetic data in contrast with long-lasting postseismic displacements following the earthquakes that occurred around Lut block. Modeling of the postseismic displacement results in a distributed slip pattern with a maximum slip of 0.8 m on the fault plane responsible for the 2010 Rigan coseismic deformation. This indicates that the postseismic deformation on barriers remained unbroken during the mainshock. © 2020 Elsevier B.V.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170538
Appears in Collections:气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Department of Earth Sciences, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66137, Iran; Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy; National Cartographic Center, Tehran, 1387835861, Iran

Recommended Citation:
Amiri M.,Mousavi Z.,Atzori S.,et al. Studying postseismic deformation of the 2010–2011 Rigan earthquake sequence in SE Iran using geodetic data[J]. Tectonophysics,2020-01-01,795
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Amiri M.]'s Articles
[Mousavi Z.]'s Articles
[Atzori S.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Amiri M.]'s Articles
[Mousavi Z.]'s Articles
[Atzori S.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Amiri M.]‘s Articles
[Mousavi Z.]‘s Articles
[Atzori S.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.