Improvement of the ray-tracing based method calculating hypocentral loci for earthquake location

doi:10.6038/cjg20150922

	Improvement of the ray-tracing based method calculating hypocentral loci for earthquake location
	Zhao Ai-Hua 1; Ding Zhi-Feng 1; Bai Zhi-Ming 2
	2015-09-01
发表期刊	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
卷号	58 期号:9 页码:3272-3285
文章类型	Article
摘要	Hypocentral loci are very useful for reliable and visual earthquake location, but they can hardly be analytically expressed when the velocity model is complex. There is a ray-tracing based numerical method to calculate them, in which a focal locus is represented in terms of ray paths from the minimum point ( namely initial point) to low residual points ( referred as hypocentral locus reference points, HLRPs) in its residual field. It has no restrictions on the complexity of the velocity model and can produce quite fine results. However, this method is incapable of addressing multi-segment loci and inadequate for processing large quantity of data. Additionally, it is rather laborious and difficult to set its controlling parameters for obtaining both fine and complete hypocentral loci. This paper presents an improvement of the ray-tracing based method.
关键词	Earthquake location Hypocentral locus Ray tracing Minimum traveltime tree algorithm Peeling method
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.6038/cjg20150922
关键词[WOS]	MAXIMUM INTERSECTION METHOD ; COMPLEX VELOCITY MODELS ; TIME TREE ALGORITHM ; TRAVEL-TIME ; YUNNAN PROVINCE ; EASTERN TAIWAN ; P-WAVE ; PROFILES ; MEDIA ; CALIFORNIA
收录类别	SCI
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000362059900022
引用统计
文献类型	期刊论文
条目标识符	http://ir.iggcas.ac.cn/handle/132A11/62225
专题	岩石圈演化国家重点实验室
作者单位	1.China Earthquake Adm, Inst Geophys, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Zhao Ai-Hua,Ding Zhi-Feng,Bai Zhi-Ming. Improvement of the ray-tracing based method calculating hypocentral loci for earthquake location[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2015,58(9):3272-3285.
APA	Zhao Ai-Hua,Ding Zhi-Feng,&Bai Zhi-Ming.(2015).Improvement of the ray-tracing based method calculating hypocentral loci for earthquake location.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,58(9),3272-3285.
MLA	Zhao Ai-Hua,et al."Improvement of the ray-tracing based method calculating hypocentral loci for earthquake location".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 58.9(2015):3272-3285.