Faulting structure above the Main Himalayan Thrust as shown by relocated aftershocks of the 2015 M(w)7.8 Gorkha, Nepal, earthquake | |
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; Bai, L | |
Source Publication | GEOPHYSICAL RESEARCH LETTERS |
2016 | |
Volume | 43Issue:2Pages:637-642 |
DOI | 10.1002/2015GL066473 |
Abstract | 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. |
Subject Area | 地质学 |
WOS ID | WOS:000372056400019 |
Language | 英语 |
Indexed By | SCI |
Keyword | Location Algorithm Seismic Network Collision Zone Southern Tibet Plate Beneath Seismotectonics Kathmandu Geometry Alos-2 Waves |
Cooperation Status | 国际 |
Department | 碰撞与隆升 |
Subtype | Article |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.itpcas.ac.cn/handle/131C11/7776 |
Collection | 图书馆 |
Corresponding Author | Bai, L |
Affiliation | 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 GB/T 7714 | 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. |
APA | Bai, L .,Liu, HB .,Ritsema, J .,Mori, J .,Zhang, TZ .,...&Bai, L.(2016).Faulting structure above the Main Himalayan Thrust as shown by relocated aftershocks of the 2015 M(w)7.8 Gorkha, Nepal, earthquake.GEOPHYSICAL RESEARCH LETTERS,43(2),637-642. |
MLA | Bai, L ,et al."Faulting structure above the Main Himalayan Thrust as shown by relocated aftershocks of the 2015 M(w)7.8 Gorkha, Nepal, earthquake".GEOPHYSICAL RESEARCH LETTERS 43.2(2016):637-642. |
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V.43(2) 637-642 2016(2930KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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