Slip model for the 2011 M(w) 9.0 Sendai (Japan) earthquake and its M(w) 7.9 aftershock derived from GPS data

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	Slip model for the 2011 M(w) 9.0 Sendai (Japan) earthquake and its M(w) 7.9 aftershock derived from GPS data
	Diao, FaQi ; Xiong, Xiong ; Ni, SiDao ; Zheng, Yong ; Ge, Can
刊名	Chinese Science Bulletin
	2011
期号	27 页码:2941-2947
中文摘要	Using GPS-measured coseismic and post-seismic displacements for the 8 h following the M(w) 9.0 Sendai earthquake of March 11, 2011, coseismic and post-seismic fault slip models were developed based on a layered crustal model. The geodetic moment magnitude of the main shock was measured as approximately M(w) 8.98. The slip exhibits clear reverse characteristics, with a maximum near the hypocenter, and a magnitude of about 23.3 m. Some strike-slip behavior may occur on the two sides of the peak rupture zone. Almost 90% of the seismic moments released by the main shock occurred at depths less than 40 km. The energy released by the fault slip in the 8 h following the main shock is approximately equal to an earthquake of M(w) 8.13. With a maximum of similar to 1.5 m, the post-seismic slip was concentrated in the southwestern part of the coseismic rupture fault, which agrees well with the location and behavior of the M(w) 7.9 aftershock. This implies that the post-seismic deformation in the 8 h after the main shock was mainly induced by the M(w) 7.9 aftershock. In addition, a post-seismic slip of 0.2-0.4 m was observed at the down-dip extension of the coseismic rupture, which may have been caused by the effect of after-slip during this period.
原文出处	://WOS:000295103900010
公开日期	2012-04-11
内容类型	期刊论文
源URL	[http://ir.whigg.ac.cn//handle/342008/3024]
专题	测量与地球物理研究所_其他_期刊论文
推荐引用方式 GB/T 7714	Diao, FaQi,Xiong, Xiong,Ni, SiDao,et al. Slip model for the 2011 M(w) 9.0 Sendai (Japan) earthquake and its M(w) 7.9 aftershock derived from GPS data[J]. Chinese Science Bulletin,2011(27):2941-2947.
APA	Diao, FaQi,Xiong, Xiong,Ni, SiDao,Zheng, Yong,&Ge, Can.(2011).Slip model for the 2011 M(w) 9.0 Sendai (Japan) earthquake and its M(w) 7.9 aftershock derived from GPS data.Chinese Science Bulletin(27),2941-2947.
MLA	Diao, FaQi,et al."Slip model for the 2011 M(w) 9.0 Sendai (Japan) earthquake and its M(w) 7.9 aftershock derived from GPS data".Chinese Science Bulletin .27(2011):2941-2947.