DOI: 10.1002/2016GL068302
论文题名: W phase source inversion using high-rate regional GPS data for large earthquakes
作者: Riquelme S. ; Bravo F. ; Melgar D. ; Benavente R. ; Geng J. ; Barrientos S. ; Campos J.
刊名: Geophysical Research Letters
ISSN: 0094-9159
EISSN: 1944-8890
出版年: 2016
卷: 43, 期: 7 起始页码: 3178
结束页码: 3185
语种: 英语
英文关键词: Seismogeodesy of W phase for tsunami early warning
Scopus关键词: Earthquakes
; Geophysics
; Tensors
; Tsunamis
; Broad-band seismometers
; Early warning
; High-rate GPS datum
; Large earthquakes
; Moment tensor inversion
; Pacific tsunami warning centers
; Real time positioning
; United states geological surveys
; Global positioning system
英文摘要: W phase moment tensor inversion has proven to be a reliable method for rapid characterization of large earthquakes. For global purposes it is used at the United States Geological Survey, Pacific Tsunami Warning Center, and Institut de Physique du Globe de Strasbourg. These implementations provide moment tensors within 30-60 min after the origin time of moderate and large worldwide earthquakes. Currently, the method relies on broadband seismometers, which clip in the near field. To ameliorate this, we extend the algorithm to regional records from high-rate GPS data and retrospectively apply it to six large earthquakes that occurred in the past 5 years in areas with relatively dense station coverage. These events show that the solutions could potentially be available 4-5 min from origin time. Continuously improving GPS station availability and real-time positioning solutions will provide significant enhancements to the algorithm. © 2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979493157&doi=10.1002%2f2016GL068302&partnerID=40&md5=7cc1b1bba95a45ebb87302d104d2ad42
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10122
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: National Seismological Center, University of Chile, Santiago, Chile
Recommended Citation:
Riquelme S.,Bravo F.,Melgar D.,et al. W phase source inversion using high-rate regional GPS data for large earthquakes[J]. Geophysical Research Letters,2016-01-01,43(7).