| DOI: | 10.1002/2014GL061923
|
| 论文题名: | The 2014 Mw 6.0 Napa earthquake, California: Observations from real-time GPS-enhanced earthquake early warning |
| 作者: | Grapenthin R.; Johanson I.; Allen R.M.
|
| 刊名: | Geophysical Research Letters
|
| ISSN: | 0094-9554
|
| EISSN: | 1944-9285
|
| 出版年: | 2014
|
| 卷: | 41, 期:23 | | 起始页码: | 8269
|
| 结束页码: | 8276
|
| 语种: | 英语
|
| 英文关键词: | earthquake early warning
; real-time GPS
|
| Scopus关键词: | Earthquakes
; Shear waves
; Berkeley seismological laboratories
; Current resolution
; Earthquake early warning
; Finite fault inversions
; Operational environments
; Real time modeling
; Real-time GPS
; Surface displacement
; Real time systems
; aftershock
; algorithm
; estimation method
; fault geometry
; GPS
; numerical model
; optimization
; performance assessment
; real time
; slip rate
; California
; United States
|
| 英文摘要: | Recently, progress has been made to demonstrate feasibility and benefits of including real-time GPS (rtGPS) in earthquake early warning and rapid response systems. Most concepts, however, have yet to be integrated into operational environments. The Berkeley Seismological Laboratory runs an rtGPS-based finite fault inversion scheme in real time. This system (G-larmS) detected the 2014 Mw 6.0 South Napa earthquake in California. We review G-larmS' performance during this event and 13 aftershocks and present rtGPS observations and real-time modeling results for the main shock. The first distributed slip model and magnitude estimates were available 24s after the event origin time, which, after optimizations, was reduced to 14s (≈8s S wave travel time, ≈6s data latency). G-larmS' solutions for the aftershocks (that had no measurable surface displacements) demonstrate that, in combination with the seismic early warning magnitude, Mw 6.0 is our current resolution limit. Key PointsGPS-based distributed fault slip model derived in real time for early warningReasonable first order approximation of South Napa slip distribution at Mw 5.9Mw 6.0 is resolution limit for current North California rtGPS network and processing ©2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84921598935&doi=10.1002%2f2014GL061923&partnerID=40&md5=fefeaaba0131d06afde217b3a10cf6e0
|
| Citation statistics: |
|
| 资源类型: | 期刊论文
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/6818
|
| Appears in Collections: | 气候减缓与适应
|
|
There are no files associated with this item.
|
|
作者单位: | Department of Earth and Environmental Science, New Mexico Institute of Mining and Technology, Socorro, NM, United States
|
| Recommended Citation: | |
Grapenthin R.,Johanson I.,Allen R.M.. The 2014 Mw 6.0 Napa earthquake, California: Observations from real-time GPS-enhanced earthquake early warning[J]. Geophysical Research Letters,2014-01-01,41(23).
|
|
|