水库地震震源深度校核方法研究与应用  

Research and Application of Reservoir Induced Earthquakes Focal Depth Checking Method

作　　者：杨磊[1] 李保华 常廷改[1] YANG Lei;LI Baohua;CHANG Tinggai(China Institute of Water Resources and Hydropower Research,20 West-Chegongzhuang Road,Beijing 100048,China;Yunnan Earthquake Agency,148 Beichen Road,Kunming 650224,China)

机构地区：[1]中国水利水电科学研究院,北京市100048 [2]云南省地震局,昆明市650224

出　　处：《大地测量与地球动力学》2019年第11期1194-1197,共4页Journal of Geodesy and Geodynamics

基　　金：国家重点研发计划(2017YFC0404901);中国水科院基本科研业务费专项资金(EB0145B092017)~~

摘　　要：采用人工方法对溪洛渡库首区流动台和距离地震震中最近的4~5个台站的原始数据进行重新分析,将获得的地震震源深度与台网目录的震源深度进行对比分析,发现二者存在明显偏差。流动台和距离震中最近的台站确定的震源深度能更合理地解释地震的成因及水库诱发地震的机理,可为其他水电工程研究水库诱发地震成因时运用地震观测数据确定较为可信的地震震源深度方法提供参考。In this study,we reanalyze the wave records from temporary seismic monitoring stations and the 4 to 5 permanent stations closest to the epicenter in the head region of Xiluodu Reservoir.The focal depth of the relocated earthquakes is compared with the network catalogue,and there is a clear deviation.The focal depth determined by the temporary stations and the permanent stations closest to the epicenter can explain the cause of the earthquake and the mechanism of the reservoir induced earthquake.It can provide references for other hydropower projects in the study of reservoir induced seismicity,and how to use seismic observation data to determine more credible seismic focal depth.

关 键 词：流动观测 震源深度 水库诱发地震 

分 类 号：P315[天文地球—地震学]