| DOI: | 10.1002/2015GL065385
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| 论文题名: | Line-of-sight displacement from ALOS-2 interferometry: Mw 7.8 Gorkha Earthquake and Mw 7.3 aftershock |
| 作者: | Lindsey E.O.; Natsuaki R.; Xu X.; Shimada M.; Hashimoto M.; Melgar D.; Sandwell D.T.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9263
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| EISSN: | 1944-8994
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| 出版年: | 2015
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| 卷: | 42, 期:16 | | 起始页码: | 6655
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| 结束页码: | 6661
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| 语种: | 英语
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| 英文关键词: | ALOS-2
; Gorkha earthquake
; InSAR
; Nepal
; PALSAR-2
; ScanSAR interferometry
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| Scopus关键词: | Fault slips
; Faulting
; Geophysics
; Interferometry
; Synthetic aperture radar
; ALOS-2
; InSAR
; Nepal
; PALSAR-2
; ScanSAR interferometry
; Earthquakes
; aftershock
; ALOS
; displacement
; fault
; interferometer
; interferometry
; PALSAR
; synthetic aperture radar
; Gandaki
; Gorkha
; Nepal
|
| 英文摘要: | Interferometric synthetic aperture radar (InSAR) is a key tool for the analysis of displacement and stress changes caused by large crustal earthquakes, particularly in remote areas. A challenge for traditional InSAR has been its limited spatial and temporal coverage especially for very large events, whose dimensions exceed the typical swath width of 70-100 km. This problem is addressed by the ALOS-2 satellite, whose PALSAR-2 instrument operates in ScanSAR mode, enabling a repeat time of 2 weeks and a swath width of 350 km. Here we present InSAR line-of-sight displacement data from ALOS-2/PALSAR-2 observations covering the Mw 7.8 Gorkha, Nepal earthquake and its Mw 7.3 aftershock that were acquired within 1 week of each event. The data are made freely available and we encourage their use in models of the fault slip and associated stress changes. The Mw 7.3 aftershock not only extended the rupture area of the main shock toward the east but also left a 20 km gap where the fault has little or no coseismic slip. We estimate this unslipped fault patch has the potential to generate a Mw 6.9 event. © 2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84941749404&doi=10.1002%2f2015GL065385&partnerID=40&md5=077e9fa811827f64c1966e2056f667d5
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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/8879
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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 for Geophysics and Planetary Physics, University of California, San Diego, San Diego, CA, United States
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| Recommended Citation: | |
Lindsey E.O.,Natsuaki R.,Xu X.,et al. Line-of-sight displacement from ALOS-2 interferometry: Mw 7.8 Gorkha Earthquake and Mw 7.3 aftershock[J]. Geophysical Research Letters,2015-01-01,42(16).
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