气候变化领域集成服务门户(CCPortal): Coseismic deformation of the 2021 Mw7.4 Maduo earthquake from joint inversion of InSAR, GPS, and teleseismic data

CCPortal

DOI	10.29382/eqs-2021-0050
	Coseismic deformation of the 2021 Mw7.4 Maduo earthquake from joint inversion of InSAR, GPS, and teleseismic data
	Liu, Chaoya; Bai, Ling; Hong, Shunying; Dong, Yanfang; Jiang, Yong; Li, Hongru; Zhan, Huili; Chen, Zhiwen
通讯作者	Bai, L (通讯作者)
发表日期	2021
ISSN	1674-4519
EISSN	1867-8777
卷号	34 期号:5
英文摘要	The Mw7.4 Maduo earthquake occurred on 22 May 2021 at 02:04 CST with a largeexpansion surface rupture. This earthquake was located in the Bayan Har block at the eastern Tibetan plateau, where eight earthquakes of Ms>7.0 have occurred in the past 25 years. Here, we combined interferometric synthetic aperture radar, GPS, and teleseismic data to study the coseismic slip distribution, fault geometry, and dynamic source rupture process of the Maduo earthquake. We found that the overall coseismic deformation field of the Maduo earthquake is distributed in the NWW-SEE direction along 285 degrees. There was slight bending at the western end and two branches at the eastern end. The maximum slip is located near the eastern bending area on the northern branch of the fault system. The rupture nucleated on the Jiangcuo fault and propagated approximately 160 km along-strike in both the NWW and SEE directions. The characteristic source rupture process of the Maduo earthquake is similar to that of the 2010 Mw6.8 Yushu earthquake, indicating that similar earthquakes with large-expansion surface ruptures and small shallow slip deficits can occur on both the internal fault and boundary fault of the Bayan Har block.
关键词	SEISMOGENIC STRUCTURE VELOCITY STRUCTURE YUSHU EARTHQUAKE RUPTURE QINGHAI CHINA ENVIRONMENT
英文关键词	Maduo earthquake; Joint inversion; Coseismic deformation; Fault geometry; Rupture process
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000756787800002
来源期刊	EARTHQUAKE SCIENCE
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260243
推荐引用方式 GB/T 7714	Liu, Chaoya,Bai, Ling,Hong, Shunying,et al. Coseismic deformation of the 2021 Mw7.4 Maduo earthquake from joint inversion of InSAR, GPS, and teleseismic data[J]. 中国科学院青藏高原研究所,2021,34(5).
APA	Liu, Chaoya.,Bai, Ling.,Hong, Shunying.,Dong, Yanfang.,Jiang, Yong.,...&Chen, Zhiwen.(2021).Coseismic deformation of the 2021 Mw7.4 Maduo earthquake from joint inversion of InSAR, GPS, and teleseismic data.EARTHQUAKE SCIENCE,34(5).
MLA	Liu, Chaoya,et al."Coseismic deformation of the 2021 Mw7.4 Maduo earthquake from joint inversion of InSAR, GPS, and teleseismic data".EARTHQUAKE SCIENCE 34.5(2021).