DOI: 10.1002/2016GL069309
论文题名: Normalized rupture potential for small and large earthquakes along the Pacific Plate off Japan
作者: Tormann T. ; Wiemer S. ; Enescu B. ; Woessner J.
刊名: Geophysical Research Letters
ISSN: 0094-8868
EISSN: 1944-8599
出版年: 2016
卷: 43, 期: 14 起始页码: 7468
结束页码: 7477
语种: 英语
英文关键词: b value
; rupture potential
; seismicity rates
; stress redistribution
Scopus关键词: Geophysics
; B value
; Large earthquakes
; Rupture potential
; Spatial selections
; Stress redistribution
; Temporal characteristics
; Temporal variability
; Tohoku earthquakes
; Earthquakes
英文摘要: We combine temporal variability in local seismic activity rates and size distributions to estimate the evolution of a Gutenberg-Richter-based metric, the normalized rupture potential (NRP), comparing differences between smaller and larger earthquakes. For the Pacific Plate off Japan, we study both complex spatial patterns and how they evolve over the last 18 years, and more detailed temporal characteristics in a simplified spatial selection, i.e., inside and outside the high-slip zone of the 2011 M9 Tohoku earthquake. We resolve significant changes, in particular an immediate NRP increase for large events prior to the Tohoku event in the subsequent high-slip patch, a very rapid decrease inside this high-stress-release area coupled with a lasting increase of NRP in the immediate surroundings. Even in the center of the Tohoku rupture, the NRP for large magnitudes has not dropped below the 12 year average and is not significantly different from conditions a decade before the M9 event. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979277023&doi=10.1002%2f2016GL069309&partnerID=40&md5=fdccb804ef4c743494a417ba9d728833
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9831
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: ETH Zurich, Swiss Seismological Service, Zurich, Switzerland
Recommended Citation:
Tormann T.,Wiemer S.,Enescu B.,et al. Normalized rupture potential for small and large earthquakes along the Pacific Plate off Japan[J]. Geophysical Research Letters,2016-01-01,43(14).