Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL074095 |
Significant lateral dip changes may have limited the scale of the 2015 M-w 7.8 Gorkha earthquake | |
Zhang, Yong1; Wang, Rongjiang2; Walter, Thomas R.2; Feng, Wanpeng3; Chen, Yongshun1; Huang, Qinghua1 | |
2017-09-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:17 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Germany; Canada |
英文摘要 | The 2015 M-w 7.8 Gorkha earthquake has drawn interest due to its complex fault geometry. Both geodetic and geologic studies have focused on the dip variations. In this study we invert the coseismic geodetic data for the 2-D dip variations of the earthquake. The best fit model confirms that the dip varies with depth, and suggests that there is a significant lateral dip anomaly along strike. The depth-dependent dip variation suggests that the earthquake ruptured a ramp-flat fault. The shallow ramp may have prevented the rupture breaking through the surface. In addition, a lateral large-dip anomaly is found in the northeastern corner of the slip area, which supports the previous findings of inferred interseismic fault coupling, coseismic high-frequency radiations, and the aftershock mechanisms. This lateral dip anomaly is likely associated with local tearing within the Indian slab. It may have blocked the east-southeastward rupture propagations of the Gorkha earthquake, implying important controls on the earthquake scale and the spatial limits of ruptures. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000411702400020 |
WOS关键词 | MAIN HIMALAYAN THRUST ; BENEATH SOUTHERN TIBET ; RUPTURE PROCESS ; SLIP DISTRIBUTION ; NEPAL EARTHQUAKE ; JOINT INVERSION ; FAULT ; GEOMETRY ; TERMINATION ; INTERFEROMETRY |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/28548 |
专题 | 气候变化 |
作者单位 | 1.Peking Univ, Sch Earth & Space Sci, Beijing, Peoples R China; 2.GFZ German Res Ctr Geosci, Helmholtz Ctr Potsdam, Potsdam, Germany; 3.Nat Resources Canada, Canada Ctr Mapping & Earth Observat, Ottawa, ON, Canada |
推荐引用方式 GB/T 7714 | Zhang, Yong,Wang, Rongjiang,Walter, Thomas R.,et al. Significant lateral dip changes may have limited the scale of the 2015 M-w 7.8 Gorkha earthquake[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(17). |
APA | Zhang, Yong,Wang, Rongjiang,Walter, Thomas R.,Feng, Wanpeng,Chen, Yongshun,&Huang, Qinghua.(2017).Significant lateral dip changes may have limited the scale of the 2015 M-w 7.8 Gorkha earthquake.GEOPHYSICAL RESEARCH LETTERS,44(17). |
MLA | Zhang, Yong,et al."Significant lateral dip changes may have limited the scale of the 2015 M-w 7.8 Gorkha earthquake".GEOPHYSICAL RESEARCH LETTERS 44.17(2017). |
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