A new fault rupture scenario for the 2003 M-w 6.6 Bam earthquake, SE Iran: Insights from the high-resolution QuickBird imagery and field observations

doi:10.1016/j.jog.2007.02.002

	A new fault rupture scenario for the 2003 M-w 6.6 Bam earthquake, SE Iran: Insights from the high-resolution QuickBird imagery and field observations
	Fu, Bihong ; Lei, Xinglin ; Hessami, Khaled ; Ninomiya, Yoshiki ; Azuma, Takashi ; Kondo, Hisao
刊名	JOURNAL OF GEODYNAMICS
	2007-10-01
卷号	44 期号:3-5 页码:160-172
关键词	strike-slip faulting surface rupture synthetic shear fault model QuickBird imagery barn earthquake Iran
ISSN号	0264-3707
DOI	10.1016/j.jog.2007.02.002
文献子类	Article
英文摘要	The December 26, 2003 M, 6.6 Bam earthquake is one of the most disastrous earthquakes in Iran. QuickBird panchromatic and multispectral satellite imagery with 61 cm and 2.4 m ground resolution, respectively provide new insights into the surface rupturing process associated with this earthquake. The results indicate that this earthquake produced a 2-5 km-wide surface rupture zone with a complex geometric pattern. A 10-km-long surface rupture zone developed along the pre-existing Barn fault trace. Two additional surface rupture zones, each 2-5 km long, are oblique to the pre-existing Bam fault in angles of 20-35 degrees. An analysis of geometric and geomorphic features also shows that movement on the Bam fault is mainly right-lateral motion with some compressional component. This interpretation is consistent with field investigations, analysis of aftershocks as well as teleseismic inversion. Therefore, we suggest that the 2003 Bam earthquake occurred on the Bam fault, and that the surface ruptures oblique to the Bam fault are caused by secondary faulting such as synthetic shears (Reidel shears). Our fault model for the Barn earthquake provides a new tectonic scenario for explaining complex surface deformations associated with the Bam earthquake. (c) 2007 Elsevier Ltd. All rights reserved.
WOS关键词	STRUCTURAL-ANALYSIS ; SOURCE PARAMETERS ; ZAGROS MOUNTAINS ; GPS MEASUREMENTS ; DEFORMATION
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000249894900005
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/67488]
专题	中国科学院地质与地球物理研究所
通讯作者	Fu, Bihong
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Geol Survey Japan, AIST, Tsukuba, Ibaraki 3058567, Japan 3.Int Inst Earthquake Engn & Seismol, Tehran 1953714476, Iran
推荐引用方式 GB/T 7714	Fu, Bihong,Lei, Xinglin,Hessami, Khaled,et al. A new fault rupture scenario for the 2003 M-w 6.6 Bam earthquake, SE Iran: Insights from the high-resolution QuickBird imagery and field observations[J]. JOURNAL OF GEODYNAMICS,2007,44(3-5):160-172.
APA	Fu, Bihong,Lei, Xinglin,Hessami, Khaled,Ninomiya, Yoshiki,Azuma, Takashi,&Kondo, Hisao.(2007).A new fault rupture scenario for the 2003 M-w 6.6 Bam earthquake, SE Iran: Insights from the high-resolution QuickBird imagery and field observations.JOURNAL OF GEODYNAMICS,44(3-5),160-172.
MLA	Fu, Bihong,et al."A new fault rupture scenario for the 2003 M-w 6.6 Bam earthquake, SE Iran: Insights from the high-resolution QuickBird imagery and field observations".JOURNAL OF GEODYNAMICS 44.3-5(2007):160-172.