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DOI	10.1785/0220190168
	The 2016 M-w 5.9 Menyuan Earthquake in the Qilian Orogen, China: A Potentially Delayed Depth-Segmented Rupture Following from the 1986 Mw 6.0 Menyuan Earthquake
	Zhang, Yingfeng; Shan, Xinjian; Zhang, Guohong; Zhong, Meijiao; Zhao, Youjia; Wen, Shaoyan; Qu, Chunyan; Zhao, Dezheng
通讯作者	Shan, XJ (通讯作者)
发表日期	2020
ISSN	0895-0695
EISSN	1938-2057
起始页码	758
结束页码	769
卷号	91 期号:2
英文摘要	An M-w 5.9 thrust earthquake occurred on 21 January 2016 in the northeastern Tibetan plateau, where another similar earthquake had ruptured in 1986. Because of the complexity and close proximity of multiple faults in this area, the exact causative fault sources for these two events have not previously been determined. We determined the seismogenic fault structural geometry of the 2016 event by analyzing the coseismic deformation from Sentinel-1A images, aftershock relocations, and geological data. Furthermore, field investigations and the relocated aftershocks for the 1986 event were used to investigate its seismogenic fault and relation with the 2016 Menyuan earthquake. The results indicate that the reverse slip of both events was distributed on the southwest-dipping Minyue-Damaying fault, where the 2016 event ruptured the deep segment and the 1986 event ruptured the shallow segment. We envision that the depth segmentation played an important role in the occurrence of two moderate earthquakes rupturing the same active fault but separated by almost 30 yr, which is thought much shorter than the average earthquake recurrence cycle. Our study indicates that seismic risks could be underestimated if depth segmentation is not considered.
关键词	SAN-ANDREAS FAULT SLIP DISTRIBUTION DEFORMATION SEQUENCE TECTONICS DYNAMICS TURKEY FIELD IRAN GPS
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000518383600021
来源期刊	SEISMOLOGICAL RESEARCH LETTERS
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/259794
推荐引用方式 GB/T 7714	Zhang, Yingfeng,Shan, Xinjian,Zhang, Guohong,et al. The 2016 M-w 5.9 Menyuan Earthquake in the Qilian Orogen, China: A Potentially Delayed Depth-Segmented Rupture Following from the 1986 Mw 6.0 Menyuan Earthquake[J]. 中国科学院青藏高原研究所,2020,91(2).
APA	Zhang, Yingfeng.,Shan, Xinjian.,Zhang, Guohong.,Zhong, Meijiao.,Zhao, Youjia.,...&Zhao, Dezheng.(2020).The 2016 M-w 5.9 Menyuan Earthquake in the Qilian Orogen, China: A Potentially Delayed Depth-Segmented Rupture Following from the 1986 Mw 6.0 Menyuan Earthquake.SEISMOLOGICAL RESEARCH LETTERS,91(2).
MLA	Zhang, Yingfeng,et al."The 2016 M-w 5.9 Menyuan Earthquake in the Qilian Orogen, China: A Potentially Delayed Depth-Segmented Rupture Following from the 1986 Mw 6.0 Menyuan Earthquake".SEISMOLOGICAL RESEARCH LETTERS 91.2(2020).