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Earthquake Research Advances, 2022 At 02:04 on May 22, 2021, an MS 7.4 earthquake occurred in Madoi County in Qinghai Province, China. This earthquake is the largest seismic event in China since the 2008 MS 8.0 Wenchuan earthquake. Thus, it is critical to investigate surface deformation and damage in time to accurately understand the seismogenic structure of the Madoi earthquake and the
Da Zhang, Yueren Xu, Ruoyu Mu
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Journal of Asian Earth Sciences, 2017 We estimate coseismic offsets at 20 sites in India due to the 25 April 2015 Gorkha, Nepal (Mw 7.8) earthquake. Only four sites in the Indian region, immediately to the south of the rupture, showed discernible coseismic horizontal offsets ranging between ...
Rajeev K Yadav, Javed N Malik, Harsh Bhu
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Direct estimation of rupture depths of earthquake faults from coseismic surface deformation
Science China Earth Sciences, 2014The rupture dimensions of earthquake faults are important parameters for characterizing earthquake ruptures and ground motions. Two key parameters to be determined are the rupture depth and dip angle of earthquake faults. Dislocation theory in an elastic half space indicates that if a seismic rupture directly runs up to the ground surface, there exist ...
Zhen Fu +4 more
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Coseismic Surface Ruptures of 20 Strike-Slip Earthquakes Measured From Geodetic Imaging Data
Earthquake SpectraObservations of coseismic surface ruptures are widely used for examining faulting mechanics and kinematics, and in fault displacement hazard analysis. Here, first, we provide new remote sensing observations of 20 historic surface rupturing continental strike-slip earthquakes (6.1 ≤ M w ≤ 7.9).
Jean-Philippe Avouac +2 more
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Tectonophysics, 2021
Abstract Microstructures from a fault gouge formed during the Ms. 8.0 Wenchuan earthquake in China were investigated in detail. In samples collected near the highest vertical surface offset, two types of amorphous materials were found in the high-strain shear zone: 1) material formed by creeping during the inter-seismic period, which is characterized
Jiaxiang Dang, Yongsheng Zhou
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Abstract Microstructures from a fault gouge formed during the Ms. 8.0 Wenchuan earthquake in China were investigated in detail. In samples collected near the highest vertical surface offset, two types of amorphous materials were found in the high-strain shear zone: 1) material formed by creeping during the inter-seismic period, which is characterized
Jiaxiang Dang, Yongsheng Zhou
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Coseismic Surface Rupture Structures Associated with 2010 Ms 7.1 Yushu Earthquake, China
Seismological Research Letters, 2012Online material: Field-measured offsets of the surface rupture. The Ms 7.1 Yushu earthquake on 14 April 2010, 07:49:38 (epicenter, 36.2°N 96.6°E; focal depth, 14 km; http://www.csi.ac.cn/manage/html/4028861611c5c2ba0111c5c558b00001/qhyushu7.1/index.html (in Chinese) was located in a remote, mountainous, and sparsely populated region ∼30 km west of ...
J. Guo +7 more
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Acta Geologica Sinica, 2012
Abstract:On 21 March 2008, a Ms7.3 earthquake occurred at Quickbird, Yutian County, Xinjiang. We attempt to reveal the features of the causative fault of this shock and its coseismic deformation field. Our work is based on analysis and interpretation to high‐resolution satellite images as well as differential interferometric synthetic aperture radar (D‐
Qu Chunyan, Xinjian Shan, Chisheng Wang
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Abstract:On 21 March 2008, a Ms7.3 earthquake occurred at Quickbird, Yutian County, Xinjiang. We attempt to reveal the features of the causative fault of this shock and its coseismic deformation field. Our work is based on analysis and interpretation to high‐resolution satellite images as well as differential interferometric synthetic aperture radar (D‐
Qu Chunyan, Xinjian Shan, Chisheng Wang
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Surface Rupture Kinematics and Coseismic Slip Distribution During the 2019 Mw7.1 Ridgecrest, California Earthquake Sequence Revealed by SAR and Optical Images [PDF]
Remote Sensing, 2020 The 2019 Ridgecrest, California earthquake sequence ruptured along a complex fault system and triggered seismic and aseismic slips on intersecting faults. To characterize the surface rupture kinematics and fault slip distribution, we used optical images and Interferometric Synthetic Aperture Radar (InSAR) observations to reconstruct the displacement ...
Yanchuan Li, Chenglong Li, Jing Nie
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Remote SensingGeometric complexities of a fault system have a significant impact on the rupture behavior of the fault. The 2021 Mw7.4 Maduo earthquake occurred on a multi-segmented complex sinistral fault in the interior of the Bayan-Har block in the northern Tibetan Plateau.
Jing Liu-Zeng
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Coseismic Throw Variation Across Along-Strike Bends on Active Normal Faults: Implications for Displacement Versus Length Scaling of Earthquake Ruptures [PDF]
Journal of Geophysical Research: Solid Earth, 2018 Fault bends, and associated changes in fault dip, play a key role in explaining the scatter in maximum offset versus surface rupture length fault scaling relationships.
Francesco Iezzi +2 more
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