globalchange  > 科学计划与规划
DOI: 10.1002/2016GL070993
论文题名:
Low radiation efficiency of the intermediate-depth earthquakes in the Japan subduction zone
作者: Ko J.Y.-T.; Kuo B.-Y.
刊名: Geophysical Research Letters
ISSN: 0094-8384
EISSN: 1944-8115
出版年: 2016
卷: 43, 期:22
起始页码: 11611
结束页码: 11619
语种: 英语
英文关键词: depth-varying source characteristics ; radiation efficiency ; self-similarity ; stress drop ; subduction zone earthquakes ; thermal runaway
Scopus关键词: Drops ; Energy dissipation ; Faulting ; Geophysics ; Seismology ; Radiation efficiency ; Self-similarities ; Source characteristics ; Stress drop ; Subduction-zone earthquakes ; Thermal runaways ; Earthquakes
英文摘要: Robust determination of earthquake source parameters over a continuous depth range is central to inferring rupture mechanisms dominant at different depths. We employed a cluster-event method to constrain the source parameters as well as along-path attenuation for earthquakes over 0–150 km depths and 4 orders of seismic moments in the Japan subduction zone. We found that corner frequency and stress drop increase with depth, whereas the radiated energy scaled by seismic moment declines with depth slightly. As a result, the radiation efficiency exhibits a notable deficit for events deeper than 60 km. Together these suggest an increased energy dissipation during faulting in ductile deformation regime, consistent with shear heating instability as an important faulting mechanism for intermediate-depth earthquakes. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85002613181&doi=10.1002%2f2016GL070993&partnerID=40&md5=895563d6515196a892e9f051c298fd42
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9347
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: California Institute of Technology, Pasadena, CA, United States

Recommended Citation:
Ko J.Y.-T.,Kuo B.-Y.. Low radiation efficiency of the intermediate-depth earthquakes in the Japan subduction zone[J]. Geophysical Research Letters,2016-01-01,43(22).
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