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Slip history of the 2016 M-w 7.0 Kumamoto earthquake: Intraplate rupture in complex tectonic environment

文献类型：期刊论文

作者Hao, Jinlai1; Ji, Chen2,3; Yao, Zhenxin1
刊名GEOPHYSICAL RESEARCH LETTERS
出版日期2017-01-28
卷号44期号:2页码:743-750
关键词Rupture Process Kumamoto Earthquake Aso Volcano Dynamic Unclamping Effect
ISSN号0094-8276
DOI10.1002/2016GL071543
文献子类Article
英文摘要Rupture history of the 2016 M-w 7.0 Kumamoto earthquake is constrained by using the waveforms of strong motion observations, teleseismic broadband body waves, and long-period surface waves. Its fault geometry is modeled with Hinagu (orienting 205 degrees and dipping 73 degrees) and Futagawa (orienting 235 degrees and dipping 60 degrees), two segments. The result reconciles the difference between moment tensor solutions and the surface fault trace. It reveals a complex rupture process that initiated on the Hinagu segment in dextral motion, propagated northeastward unilaterally, and after 15s ceased near Aso volcano with normal fault motion. The average slip, rise time, and slip rate are 1.8m, 2.0s, and 1.2m/s, respectively. The rupture broke through an similar to 30 degrees fault intersection without notable delay, which can be a result of dynamic unclamping. The northeast boundary of the largest asperity might mark the bottom of the seismogenic zone, which becomes shallower gradually near Aso volcano.
WOS关键词STRONG-MOTION DATA ; ASO VOLCANO ; FAULT ; INVERSION ; JAPAN ; SEISMICITY ; CALIFORNIA
WOS研究方向Geology
语种英语
WOS记录号WOS:000395652600018
出版者AMER GEOPHYSICAL UNION
资助机构National Natural Science Foundation of China(41541033 ; National Natural Science Foundation of China(41541033 ; NSF(EAR-1215769 ; NSF(EAR-1215769 ; Southern California Earthquake Center ; Southern California Earthquake Center ; USGS(02HQAG0008) ; USGS(02HQAG0008) ; 41374061 ; 41374061 ; EAR-0109624) ; EAR-0109624) ; 41574058) ; 41574058) ; National Natural Science Foundation of China(41541033 ; National Natural Science Foundation of China(41541033 ; NSF(EAR-1215769 ; NSF(EAR-1215769 ; Southern California Earthquake Center ; Southern California Earthquake Center ; USGS(02HQAG0008) ; USGS(02HQAG0008) ; 41374061 ; 41374061 ; EAR-0109624) ; EAR-0109624) ; 41574058) ; 41574058) ; National Natural Science Foundation of China(41541033 ; National Natural Science Foundation of China(41541033 ; NSF(EAR-1215769 ; NSF(EAR-1215769 ; Southern California Earthquake Center ; Southern California Earthquake Center ; USGS(02HQAG0008) ; USGS(02HQAG0008) ; 41374061 ; 41374061 ; EAR-0109624) ; EAR-0109624) ; 41574058) ; 41574058) ; National Natural Science Foundation of China(41541033 ; National Natural Science Foundation of China(41541033 ; NSF(EAR-1215769 ; NSF(EAR-1215769 ; Southern California Earthquake Center ; Southern California Earthquake Center ; USGS(02HQAG0008) ; USGS(02HQAG0008) ; 41374061 ; 41374061 ; EAR-0109624) ; EAR-0109624) ; 41574058) ; 41574058)
源URL[http://ir.iggcas.ac.cn/handle/132A11/53092]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Ji, Chen
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
2.Univ Calif Santa Barbara, Earth Res Inst, Santa Barbara, CA 93106 USA
3.Univ Calif Santa Barbara, Dept Earth Sci, Santa Barbara, CA 93106 USA
推荐引用方式
GB/T 7714		 Hao, Jinlai,Ji, Chen,Yao, Zhenxin. Slip history of the 2016 M-w 7.0 Kumamoto earthquake: Intraplate rupture in complex tectonic environment[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(2):743-750.
APA Hao, Jinlai,Ji, Chen,&Yao, Zhenxin.(2017).Slip history of the 2016 M-w 7.0 Kumamoto earthquake: Intraplate rupture in complex tectonic environment.GEOPHYSICAL RESEARCH LETTERS,44(2),743-750.
MLA Hao, Jinlai,et al."Slip history of the 2016 M-w 7.0 Kumamoto earthquake: Intraplate rupture in complex tectonic environment".GEOPHYSICAL RESEARCH LETTERS 44.2(2017):743-750.

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来源：地质与地球物理研究所

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