2020年1月19日新疆伽师MS6.4地震序列特征及后续趋势分析  

CHARACTERISTICS OF XINJIANG JIASHI M S6.4 EARTHQUAKE SEQUENCE AND SUBSEQUENT TREND ANALYSIS ON JANUARY 19TH,2020

作　　者：向元[1] 聂晓红[1] 李金[1] 刘建明[1] XIANG Yuan;NIE Xiao-hong;LI Jin;LIU Jian-ming;GAO Rong(Earthquake Agency of Xinjiang Uygur Autonomous Region,Urumqi 830011,Xinjiang,China)

机构地区：[1]新疆维吾尔自治区地震局,新疆乌鲁木齐830011

出　　处：《内陆地震》2020年第1期20-29,共10页Inland Earthquake

基　　金：震情跟踪定向工作任务(2020010126).

摘　　要：介绍2020年1月18日新疆伽师M S5.4和1月19日M S6.4两次地震的基本参数、震源机制解、精定位等资料,分析伽师M S6.4地震序列类型、序列衰减特征和余震序列各项数字地震学资料,并就该序列与历史地震序列进行对比,提出震后趋势判定意见。分析认为,该序列为前—主—余型,余震序列衰减较为迅速。Introduces the basic parameters,focal mechanism solutions,precise positioning and other data of the two earthquakes of Xinjiang Jiashi M S5.4 earthquake on January 18th,2020 and M S6.4 earthquake on January 19th,2020,and we analyzes the types and attenuation of Jiashi M S6.4 earthquake sequence features and various digital seismological data of the aftershock sequence,and compare the sequence with the historical earthquake sequence,and put forward the post-earthquake trend judgment opinions.According to the analysis,the sequence is pre-main-co-type,and the aftershock sequence decays rapidly.

关 键 词：伽师MS6.4地震 序列分析 强余震 震后趋势判定 

分 类 号：P315.7[天文地球—地震学]