| DOI: | 10.1002/2015GL066595
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| 论文题名: | Gravity increase before the 2015 Mw 7.8 Nepal earthquake |
| 作者: | Chen S.; Liu M.; Xing L.; Xu W.; Wang W.; Zhu Y.; Li H.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9516
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| EISSN: | 1944-9247
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| 出版年: | 2016
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| 卷: | 43, 期:1 | | 起始页码: | 111
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| 结束页码: | 117
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| 语种: | 英语
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| 英文关键词: | gravity change
; Himalayan fault zone
; India-Eurasian collision
; Nepal Mw7.8 earthquake
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| Scopus关键词: | Earthquakes
; Faulting
; Geophysics
; Strain energy
; Absolute gravity
; Fault zone
; Gravity changes
; Ground measurements
; India-Eurasian collision
; Large earthquakes
; Plate interfaces
; Secular variation
; Gravitation
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| 英文摘要: | The 25 April 2015 Nepal earthquake (Mw 7.8) ruptured a segment of the Himalayan front fault zone. Four absolute gravimetric stations in southern Tibet, surveyed from 2010/2011 to 2013 and corrected for secular variations, recorded up to 22.40 ± 1.11 μGal/yr of gravity increase during this period. The gravity increase is distinct from the long-wavelength secular trends of gravity decrease over the Tibetan Plateau and may be related to interseismic mass change around the locked plate interface under the Himalayan-Tibetan Plateau. We modeled the source region as a disk of 580 km in diameter, which is consistent with the notion that much of the southern Tibetan crust is involved in storing strain energy that drives the Himalayan earthquakes. If validated in other regions, high-precision ground measurements of absolute gravity may provide a useful method for monitoring mass changes in the source regions of potential large earthquakes. © 2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84956584129&doi=10.1002%2f2015GL066595&partnerID=40&md5=8e24e296923adf387e4558483a6c3390
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/10479
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Institute of Geophysics, China Earthquake Administration, Beijing, China
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| Recommended Citation: | |
Chen S.,Liu M.,Xing L.,et al. Gravity increase before the 2015 Mw 7.8 Nepal earthquake[J]. Geophysical Research Letters,2016-01-01,43(1).
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