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DOI	10.6038/cjg2020N0231
	Source parameters of the 2019 M(s)6. 3 Medog earthquake and its tectonic implications
	Li GuoHui; Bai Ling; Ding Lin; Song BoWen; Jiang Yong
通讯作者	Bai, L (通讯作者)
发表日期	2020
ISSN	0001-5733
起始页码	1214
结束页码	1223
卷号	63 期号:3
英文摘要	An M(s)6. 3 earthquake occurred at Medog County, Nyingchi City, Tibet at Beijing time 04 :15 on 24 April 2019. This earthquake is located in the northeast corner of the Himalaya orogenic belt where the Indian plate underthrusts beneath the Eurasian plate. Based on the waveforms recorded by the local broadband seismic stations we deployed at the eastern Himalaya syntaxis, and the waveform and traveltime data obtained from Chinese and international seismic networks, we determined the earthquake location, focal mechanism and rupture process. The resulting epicenter of this earthquake is (94. 56+0. 01 degrees E, 28. 41+0. 01 degrees N) and the focal depth is 13.3 +/- 1. 6 km below the surface (or 11. 5 +/- 1. 6 km beneath the sea level). The focal mechanism solution strike/dip/slip is 202 degrees/17 degrees/20 degrees. The large rupture is mainly concentrated about 5 km to the NNE of the initial rupture area. Combined with other previous geophysical and geological studies, we infer that the earthquake occurred at the rapid turning area where the Main Himalayan thrust suddenly rotated nearly 90 degrees. The major tectonic feature for this area is the west-dipping subduction and northward thrust of the Sang syntaxis with respect to the Namche Barwa syntaxis.
关键词	MAIN HIMALAYAN THRUST TIBET AFTERSHOCKS INVERSION NETWORK GORKHA CHINA TIMES ZAYU WAVE
英文关键词	Eastern Himalaya syntaxis; 2019 M(s)6. 3 Medog earthquake; Earthquake relocation; Focal mechanism solution; Source rupture process
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000519847700032
来源期刊	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
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/259785
推荐引用方式 GB/T 7714	Li GuoHui,Bai Ling,Ding Lin,et al. Source parameters of the 2019 M(s)6. 3 Medog earthquake and its tectonic implications[J]. 中国科学院青藏高原研究所,2020,63(3).
APA	Li GuoHui,Bai Ling,Ding Lin,Song BoWen,&Jiang Yong.(2020).Source parameters of the 2019 M(s)6. 3 Medog earthquake and its tectonic implications.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,63(3).
MLA	Li GuoHui,et al."Source parameters of the 2019 M(s)6. 3 Medog earthquake and its tectonic implications".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 63.3(2020).