DOI: 10.1002/grl.50130
论文题名: Nucleation and seismic tremor associated with the glacial earthquakes of Whillans Ice Stream, Antarctica
作者: Winberry J.P. ; Anandakrishnan S. ; Wiens D.A. ; Alley R.B.
刊名: Geophysical Research Letters
ISSN: 0094-9385
EISSN: 1944-9116
出版年: 2013
卷: 40, 期: 2 起始页码: 312
结束页码: 315
语种: 英语
Scopus关键词: Antarctica
; Ice streams
; Natural phenomena
; Rupture propagation
; Seismic tremor
; Transient motions
; West antarctica
; Glacial geology
; Earthquakes
; glaciation
; GPS
; ice stream
; landslide
; nucleation
; rupture
; satellite data
; seismicity
; seismograph
; transient flow
; Antarctica
; West Antarctic Ice Sheet
; West Antarctica
; Whillans Ice Stream
英文摘要: The ability to monitor transient motion along faults is critical to improving our ability to understand many natural phenomena such as landslides and earthquakes. Here, we usedata from a GPS and seismometer network that were deployed to monitor the regularly repeating glacial earthquakes of Whillans Ice Stream, West Antarctica to show that a unique pattern of precursory slip precedes complete rupture along the bed of the ice stream. Additionally, we show that rupture can be independently tracked by increased levels of microseismic activity, including harmonic tremor, that are coincident with the onset of slip at any location, thus providing a remote means of monitoring stress and rupture propagation during the glacial earthquakes. © 2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84874840077&doi=10.1002%2fgrl.50130&partnerID=40&md5=8f9916bc587011a5d09fadecc3ae93f8
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6649
Appears in Collections: 气候减缓与适应
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作者单位: Department of Geological Sciences, Central Washington University, Ellensburg, WA 98926, United States
Recommended Citation:
Winberry J.P.,Anandakrishnan S.,Wiens D.A.,et al. Nucleation and seismic tremor associated with the glacial earthquakes of Whillans Ice Stream, Antarctica[J]. Geophysical Research Letters,2013-01-01,40(2).