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DOI: 10.1002/2015GL063959
论文题名:
Very low frequency earthquakes off the Pacific coast of Tohoku, Japan
作者: Matsuzawa T.; Asano Y.; Obara K.
刊名: Geophysical Research Letters
ISSN: 0094-9621
EISSN: 1944-9352
出版年: 2015
卷: 42, 期:11
起始页码: 4318
结束页码: 4325
语种: 英语
英文关键词: 2011 Tohoku earthquake ; off the Pacific coast of Tohoku ; slow earthquake ; very low frequency earthquake
Scopus关键词: Earthquakes ; 2011 tohoku earthquakes ; Centroid moment tensors ; Cross-correlation analysis ; Pacific coasts ; Stress redistribution ; Temporal evolution ; Tohoku earthquakes ; Very low frequency ; Faulting
英文摘要: We found very low frequency earthquakes (VLFEs) at a shallow subduction zone close to the Japan Trench off the Pacific coast of Tohoku, Japan. Centroid moment tensor solutions of VLFEs showed reverse fault mechanisms with a compression axis in the east-west direction. A cross-correlation analysis of seismograms with template events between 2005 and 2013 revealed three major VLFE clusters and their temporal evolution. A VLFE cluster in the central off-Tohoku region located in the large slip area of the 2011 Tohoku earthquake was detectable only before the Tohoku earthquake. However, VLFEs in the northern and southern off-Tohoku regions at the rim of the large slip area were activated after the Tohoku earthquake. The change in the activity may reflect the stress redistribution by the coseismic and/or afterslip processes of the Tohoku earthquake. ©2015. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84934434883&doi=10.1002%2f2015GL063959&partnerID=40&md5=5109ce900e41574f8995c9d5096da35e
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9236
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 Research Institute for Earth Science and Disaster Prevention, Tsukuba, Japan

Recommended Citation:
Matsuzawa T.,Asano Y.,Obara K.. Very low frequency earthquakes off the Pacific coast of Tohoku, Japan[J]. Geophysical Research Letters,2015-01-01,42(11).
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