摘要
对2021年3月24日拜城M_(S)5.4地震震前异常进行回顾总结,分析其震前地震学异常,包括地震平静、天山中段3、4级地震异常增强、拜城地震窗、阿克苏单台振幅比和小震调制比等中短期异常。研究结果表明本次地震震前异常主要为地震平静类异常,共有4项,按出现时间顺序分别为:乌苏—拜城地区M_(L)4.0地震平静,拜城—乌鲁木齐地区M_(S)4.0地震平静,拜城—新源—库尔勒地区M_(S)3.0地震平静和新疆境内5级地震平静。
Anomalies before Baicheng M_(S)5.4 earthquake on March 24 th,2021 are reviewed and summarized,and the seismological anomalies before the earthquake are analyzed,including seismic quiescence,abnormal enhancement of M_(S)3 and M_(S)4 earthquakes in the Middle Tianshan Mountains,Baicheng seismic window,amplitude ratio of Aksu single station and modulation ratio of small earthquakes.Anomalies are mainly calm type anomalies,a total of 4 items,according to the time order of appearance are:Wusu—Baicheng M_(L)4.0 earthquake calm,Baicheng—Urumqi M_(S)4.0 earthquake calm,Baicheng—Xinyuan—Kurle M_(S)3.0 earthquake calm and M_(S)≥5.0 earthquake calm in Xinjiang.
作者
高荣
聂晓红
刘建明
向元
张琳琳
GAO Rong;NIE Xiao-hong;LIU Jian-ming;XIANG Yuan;ZHANG Lin-lin(Earthquake Agency of Xinjiang Uygur Autonomous Region,Urumqi 830011,Xinjiang,China)
出处
《内陆地震》
2021年第2期109-119,共11页
Inland Earthquake
基金
新疆维吾尔自治区自然科学基金面上项目(2020D01A84)。
