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	Slip model of the 2008 m-w 7.9 wenchuan (china) earthquake derived from co-seismic gps data
	Diao, Faqi1,2; Xiong, Xiong1; Wang, Rongjiang3; Zheng, Yong1; Hsu, Houtse1
刊名	Earth planets and space
	2010
卷号	62期号:11页码:869-874
关键词	Wenchuan earthquake Slip model Inversion Gps data
ISSN号	1343-8832
DOI	10.5047/eps.2009.05.003
通讯作者	Diao, faqi(faqidiao@asch.whigg.ac.cn)
英文摘要	Near-field co-seismic gps data were used to derive the slip distribution of the 12 may 2008 wenchuan earthquake. based on field measurements and geological observations, the earthquake is represented by ruptures on the beichuan fault and a neighboring fault from pengxian to guanxian, both dipping with a decreasing angle with depth. using a layered elastic crust model, we obtained a slip model that not only best fits the co-seismic gps data but which also shows general consistency with the surface ruptures observed from the field survey. the slip maxima are dominant at a very shallow depth near beichuan and jiangyou, although the exact peak value of the slip distribution is not well constrained due to the inhomogeneous data coverage in the near-fault area. the maximum slip in our inversion is thus limited to about 9 m, as estimated from the field measurement, but no strict restriction is applied to the slip direction, i.e., the rake angle. the slip model yields a moment magnitude that is very close to m-w = 7.9, which is the estimate based on teleseismic observations. near the hypocenter, the slip exhibits reverse behavior. the major rupture near beichuan involves both right-lateral strike-slip and reverse components. slip on the secondary fault is dominated by the reverse component with a maximum of approximately 2-3 m.
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
语种	英语
出版者	TERRA SCIENTIFIC PUBL CO
WOS记录号	WOS:000287478900004
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2407983
专题	中国科学院大学
通讯作者	Diao, Faqi
作者单位	1.Chinese Acad Sci, Inst Geodesy & Geophys, Key Lab Geodesy & Geodynam, Wuhan 430077, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.GFZ German Res Ctr Geosci, D-14473 Potsdam, Germany
推荐引用方式 GB/T 7714	Diao, Faqi,Xiong, Xiong,Wang, Rongjiang,et al. Slip model of the 2008 m-w 7.9 wenchuan (china) earthquake derived from co-seismic gps data[J]. Earth planets and space,2010,62(11):869-874.
APA	Diao, Faqi,Xiong, Xiong,Wang, Rongjiang,Zheng, Yong,&Hsu, Houtse.(2010).Slip model of the 2008 m-w 7.9 wenchuan (china) earthquake derived from co-seismic gps data.Earth planets and space,62(11),869-874.
MLA	Diao, Faqi,et al."Slip model of the 2008 m-w 7.9 wenchuan (china) earthquake derived from co-seismic gps data".Earth planets and space 62.11(2010):869-874.

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