气候变化领域集成服务门户(CCPortal): High-resolution seismic tomography of the 2015 M(w)7.8 Gorkha earthquake, Nepal: Evidence for the crustal tearing of the Himalayan rift

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DOI	10.1002/2016GL069808
	High-resolution seismic tomography of the 2015 M(w)7.8 Gorkha earthquake, Nepal: Evidence for the crustal tearing of the Himalayan rift
	Pei, Shunping; Liu, Hongbing; Bai, Ling; Liu, Yanbing; Sun, Quan
通讯作者	Pei, SP (通讯作者)
发表日期	2016
ISSN	0094-8276
EISSN	1944-8007
起始页码	9045
结束页码	9052
卷号	43 期号:17
英文摘要	The M(w)7.8 Gorkha earthquake struck Nepal and ruptured the boundary between the Indian and Eurasian plates. We conducted 2-D Pg wave tomography to clarify the seismogenic structure and try to understand causal mechanisms for this large earthquake, using the aftershock data recorded by 15 broadband seismic stations located near the China-Nepal border. Our high-resolution results show that coseismic slip area of the main shock is consistent with the high P wave velocity anomaly, and the region of maximum slip has a larger area with higher velocity than the region of initial slip, possibly resulting in the dominant low-frequency radiation of energy observed after the dominant high-frequency radiation of energy in the source rupture process. The boundary between these regions of contrasting high and low seismic velocity anomalies suggests a potential crustal tearing at the southern end of the Tangra Yum Co Rift, possibly resulting from different thrust speeds in the Greater Himalaya.
关键词	VELOCITY STRUCTURE YUSHU EARTHQUAKE BENEATH SOUTHERN TIBET CONSTRAINTS AFTERSHOCKS KATHMANDU BOUNDARY QINGHAI THRUST
英文关键词	high-resolution tomography; Gorkha earthquake; fault zone structure; north-south rift
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000385357200028
来源期刊	GEOPHYSICAL 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/258627
推荐引用方式 GB/T 7714	Pei, Shunping,Liu, Hongbing,Bai, Ling,et al. High-resolution seismic tomography of the 2015 M(w)7.8 Gorkha earthquake, Nepal: Evidence for the crustal tearing of the Himalayan rift[J]. 中国科学院青藏高原研究所,2016,43(17).
APA	Pei, Shunping,Liu, Hongbing,Bai, Ling,Liu, Yanbing,&Sun, Quan.(2016).High-resolution seismic tomography of the 2015 M(w)7.8 Gorkha earthquake, Nepal: Evidence for the crustal tearing of the Himalayan rift.GEOPHYSICAL RESEARCH LETTERS,43(17).
MLA	Pei, Shunping,et al."High-resolution seismic tomography of the 2015 M(w)7.8 Gorkha earthquake, Nepal: Evidence for the crustal tearing of the Himalayan rift".GEOPHYSICAL RESEARCH LETTERS 43.17(2016).