DOI: 10.1002/2016GL070069
论文题名: Scaling relation between earthquake magnitude and the departure time from P wave similar growth
作者: Noda S. ; Ellsworth W.L.
刊名: Geophysical Research Letters
ISSN: 0094-8694
EISSN: 1944-8425
出版年: 2016
卷: 43, 期: 17 起始页码: 9053
结束页码: 9060
语种: 英语
英文关键词: earthquake early warning
; initial rupture
; magnitude
; nucleation
; scaling
Scopus关键词: Bandpass filters
; Geophysics
; Nucleation
; Seismic waves
; Transportation
; Absolute displacement
; Earthquake early warning
; Earthquake magnitudes
; Hypocentral distance
; initial rupture
; magnitude
; scaling
; Scaling relations
; Earthquakes
英文摘要: We introduce a new scaling relation between earthquake magnitude (M) and a characteristic of initial P wave displacement. By examining Japanese K-NET data averaged in bins partitioned by Mw and hypocentral distance, we demonstrate that the P wave displacement briefly displays similar growth at the onset of rupture and that the departure time (Tdp), which is defined as the time of departure from similarity of the absolute displacement after applying a band-pass filter, correlates with the final M in a range of 4.5 ≤ Mw ≤ 7. The scaling relation between Mw and Tdp implies that useful information on the final M can be derived while the event is still in progress because Tdp occurs before the completion of rupture. We conclude that the scaling relation is important not only for earthquake early warning but also for the source physics of earthquakes. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84988960536&doi=10.1002%2f2016GL070069&partnerID=40&md5=0be57a810f037e0791755391f0a00138
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9657
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: United States Geological Survey, Menlo Park, CA, United States
Recommended Citation:
Noda S.,Ellsworth W.L.. Scaling relation between earthquake magnitude and the departure time from P wave similar growth[J]. Geophysical Research Letters,2016-01-01,43(17).