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学科主题: 地球科学::地质学
题名: Faulting structure above the Main Himalayan Thrust as shown by relocated aftershocks of the 2015 M(w)7.8 Gorkha, Nepal, earthquake
作者: Bai, L (Bai, Ling)1; Liu, HB (Liu, Hongbing)1; Ritsema, J (Ritsema, Jeroen)2; Mori, J (Mori, James)3; Zhang, TZ (Zhang, Tianzhong)4; Ishikawa, Y (Ishikawa, Yuzo)5; Li, GH (Li, Guohui)1
通讯作者: Bai, L
刊名: GEOPHYSICAL RESEARCH LETTERS
发表日期: 2016
DOI: 10.1002/2015GL066473
卷: 43, 期:2, 页:637-642
收录类别: SCI
合作性质: 国际
文章类型: Article
英文摘要: The 25 April 2015, M(w)7.8 Gorkha, Nepal, earthquake ruptured a shallow section of the Indian-Eurasian plate boundary by reverse faulting with NNE-SSW compression, consistent with the direction of current Indian-Eurasian continental collision. The Gorkha main shock and aftershocks were recorded by permanent global and regional arrays and by a temporary local broadband array near the China-Nepal border deployed prior to the Gorkha main shock. We relocate 272 earthquakes with M-w > 3.5 by applying a multiscale double-difference earthquake relocation technique to arrival times of direct and depth phases recorded globally and locally. We determine a well-constrained depth of 18.5 km for the main shock hypocenter which places it on the Main Himalayan Thrust (MHT). Many of the aftershocks at shallower depths illuminate faulting structure in the hanging wall with dip angles that are steeper than the MHT. This system of thrust faults of the Lesser Himalaya may accommodate most of the elastic strain of the Himalayan orogeny.
语种: 英语
WOS记录号: WOS:000372056400019
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7776
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing, Peoples R China
2.Univ Michigan, Dept Earth & Environm Sci, Ann Arbor, MI 48109 USA
3.Kyoto Univ, Disaster Prevent Res Inst, Kyoto, Japan
4.China Earthquake Adm, Inst Geophys, Beijing, Peoples R China
5.Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki, Japan

Recommended Citation:
Bai, L ,Liu, HB ,Ritsema, J ,et al. Faulting structure above the Main Himalayan Thrust as shown by relocated aftershocks of the 2015 M(w)7.8 Gorkha, Nepal, earthquake[J]. GEOPHYSICAL RESEARCH LETTERS,2016,43(2):637-642.
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