DOI: 10.1002/2015GL065201
论文题名: Slip model of the 2015 Mw 7.8 Gorkha (Nepal) earthquake from inversions of ALOS-2 and GPS data
作者: Wang K. ; Fialko Y.
刊名: Geophysical Research Letters
ISSN: 0094-9409
EISSN: 1944-9140
出版年: 2015
卷: 42, 期: 18 起始页码: 7452
结束页码: 7458
语种: 英语
英文关键词: Gorkha earthquake
; GPS
; InSAR
; Main Himalaya Thrust
; slip model
; space geodesy
Scopus关键词: Capillary flow
; Earthquakes
; Faulting
; Geodetic satellites
; Geophysics
; Global positioning system
; Synthetic aperture radar
; Tracking (position)
; Coseismic slip distribution
; Himalayas
; InSAR
; Interferometric synthetic aperture radars
; Moment magnitudes
; Slip model
; Space geodesy
; Surface deformation
; Fault slips
; ALOS
; earthquake epicenter
; earthquake event
; fault geometry
; GPS
; numerical model
; satellite data
; slip
; synthetic aperture radar
; thrust fault
; Himalayas
英文摘要: We use surface deformation measurements including Interferometric Synthetic Aperture Radar data acquired by the ALOS-2 mission of the Japanese Aerospace Exploration Agency and Global Positioning System (GPS) data to invert for the fault geometry and coseismic slip distribution of the 2015 Mw 7.8 Gorkha earthquake in Nepal. Assuming that the ruptured fault connects to the surface trace of the Main Frontal Thrust (MFT) fault between 84.34°E and 86.19°E, the best fitting model suggests a dip angle of 7°. The moment calculated from the slip model is 6.08 × 1020 Nm, corresponding to the moment magnitude of 7.79. The rupture of the 2015 Gorkha earthquake was dominated by thrust motion that was primarily concentrated in a 150 km long zone 50 to 100 km northward from the surface trace of the Main Frontal Thrust (MFT), with maximum slip of 5.8 m at a depth of 8 km. Data thus indicate that the 2015 Gorkha earthquake ruptured a deep part of the seismogenic zone, in contrast to the 1934 Bihar-Nepal earthquake, which had ruptured a shallow part of the adjacent fault segment to the east. © 2015 American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84945438716&doi=10.1002%2f2015GL065201&partnerID=40&md5=7573046391b671e1c41b463f8f898af8
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9024
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 Geophysical and Planetary Physics, Scripps Institution of Oceanography, University of California, San Diego, CA, United States
Recommended Citation:
Wang K.,Fialko Y.. Slip model of the 2015 Mw 7.8 Gorkha (Nepal) earthquake from inversions of ALOS-2 and GPS data[J]. Geophysical Research Letters,2015-01-01,42(18).