DOI: 10.1002/2015GL066616
论文题名: Influence of anthropogenic groundwater unloading in Indo-Gangetic plains on the 25 April 2015 Mw 7.8 Gorkha, Nepal earthquake
作者: Kundu B. ; Vissa N.K. ; Gahalaut V.K.
刊名: Geophysical Research Letters
ISSN: 0094-8280
EISSN: 1944-8011
出版年: 2015
卷: 42, 期: 24 起始页码: 10607
结束页码: 10613
语种: 英语
英文关键词: 2015 Gorkha, Nepal earthquake
; Coulomb stress
; groundwater
; Indo-Gangetic plains
; Main Himalayan Thrust
; Nepal Himalaya
Scopus关键词: Aquifers
; Climate change
; Climate models
; Earthquakes
; Geophysics
; Groundwater
; Groundwater resources
; Hydrogeology
; Replenishment (water resources)
; Unloading
; Coulomb stress
; Gravity recovery and climate experiment datum
; Groundwater withdrawal
; Himalayas
; Hydrological models
; Indo-Gangetic Plains
; Main himalayan thrusts
; Substantial reduction
; Fault slips
; anthropogenic effect
; aquifer
; compression
; Coulomb criterion
; earthquake magnitude
; fault slip
; Gorkha earthquake 2015
; GRACE
; groundwater abstraction
; hydrological modeling
; secular variation
; seismicity
; spatiotemporal analysis
; thrust
; unloading
; Gangetic Plain
; Himalayas
; Nepal
英文摘要: Groundwater usage in the Indo-Gangetic plains exceeds replenishment of aquifers, leading to substantial reduction in the mass. Such anthropogenic crustal unloading may promote long-term fault slip or may modulate seismic activity in the adjoining Himalayan region. Our simulation using Gravity Recovery and Climate Experiment data and hydrological models of such a process indicates that the thrust earthquakes on the Main Himalayan Thrust (MHT), including the recent 25 April 2015 Mw 7.8 Gorkha, Nepal earthquake, are probably influenced by the anthropogenic groundwater unloading process in the Gangetic plains. The groundwater withdrawal leading to crustal unloading in the Gangetic plains causes a significant component of horizontal compression which adds to the secular interseimic compression at the seismogenic depth (5-20 km) on the MHT beneath the Himalayan arc and at hypocentral depth of the 2015 Gorkha, Nepal earthquake. This effect enhances the Coulomb stress on the locked zone of MHT. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84955207587&doi=10.1002%2f2015GL066616&partnerID=40&md5=0fb20c31fa8c68bcc70fd92533bbd84d
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7896
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: Department of Earth and Atmospheric Sciences, NIT Rourkela, Rourkela, India
Recommended Citation:
Kundu B.,Vissa N.K.,Gahalaut V.K.. Influence of anthropogenic groundwater unloading in Indo-Gangetic plains on the 25 April 2015 Mw 7.8 Gorkha, Nepal earthquake[J]. Geophysical Research Letters,2015-01-01,42(24).