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  张志斌,朱浩清,李艳永.基于地震波反演研究南天山中西段的震源深度[J].震灾防御技术,2015,10(s1):701-711, DOI:10.11899/zzfy2015s101.

基于地震波反演研究南天山中西段的震源深度
摘要:    南天山中西段位于塔里木块体与西昆仑之间,地震频发。本文利用基于波形反演的CAP方法对南天山中西段地震震源深度进行了反演,得到的震源深度与用到时定位得到的震源深度进行了对比,发现用到时定位得到的震源深度整体偏浅。同时,南天山中段山前地区震源深度比南天山中段中部地区震源深度浅,南天山由西往东呈现震源深度变浅的趋势。南天山中西段震源深度整体分布在15—23km,有明显的地震活动深度下界。
作者单位
张志斌 新疆维吾尔自治区地震局乌鲁木齐 830011 
朱浩清 新疆维吾尔自治区地震局乌鲁木齐 830011 
李艳永 新疆维吾尔自治区地震局乌鲁木齐 830011 
关  键  词:震源深度  CAP方法  南天山中西段
DOI:10.11899/zzfy2015s101
基金项目:地震科技星火计划青年项目(XH13028Y)和中国地震局2015 年度测震台网青年骨干培养专项(20150429)共同资助
收稿日期:2015-05-25
作者简介:张志斌,男,生于1988 年。2011 年毕业于中国地质大学(武汉)地球物理系,助理级工程师。主要从事测震台网地震监测与系统维护工作。E-mail: 306920839@qq.com
通讯作者:
Study on Focal Depth from Seismic Inversion in the Western-Middle Section of Southern Tianshan
Abstract:      The west-middle section of south Tianshan mountain, located between tarim block and west Kunlun, is an earthquake-prone area. By using waveform inversion method of CAP we carried out inversion of the earthquake focal depth in west-middle section of south Tianshan. We compared focal depth with base on the positioning, and found that focal depth we obtained is relatively shallower. Meanwhile the focal depth of the Piedmont region of south Tianshan is shallower than the central region of south Tianshan. The south Tianshan from west to east shows the tendency of focal depth becoming shallow. In west-middle section of south Tianshan focal depth distribution is in 15-23 km overall. There exists a remarkable depth limit to the earthquake activity.
Keywords:  The focal depth  The method of CAP  In west-middle section of south Tianshan mountain
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