摘要
2017年9月2日宁夏固原市原州区发生4.6级地震。为了检验小震调制比的映震能力,对固原4.6级地震前后震中周围M_(L)1.5—5.0地震进行调制比空间扫描,发现小震调制比对中等有感地震映震能力良好。调制比对发震地点具有较好的指示意义。
On September 2,2017,a magnitude 4.6 earthquake occurred in Yuanzhou District,Guyuan City,Ningxia.In order to test the earthquake reflection ability of the modulation ratio of small earthquakes,this paper carries out a spatial scanning of the modulation ratio of small earthquakes before and after the Guyuan M_(L)4.6 earthquake.The results show that the modulation ratio of small earthquakes has a good earthquake reflection ability to moderate sensible earthquakes and this method has a good indication significance for predicting the earthquake location.
作者
李文君
曾宪伟
罗国富
马翀之
王晨曦
LI Wenjun;ZENG Xianwei;LUO Guofu;MA Chongzhi;WANG Chenxi(Earthquake Agency of Ningxia Hui Autonomous Region,Yinchuan 750001,China)
出处
《地震地磁观测与研究》
2021年第6期49-54,共6页
Seismological and Geomagnetic Observation and Research
基金
强震危险性研究创新团队项目(项目编号:CX2019-4)
宁夏地震科研基金课题(项目编号:NX202013)
2021年度震情跟踪、定向工作任务(项目编号:2021010117)
宁夏自然科学基金项目(项目编号:2021AAC03481)。
关键词
固原地震
小震调制比
中等有感地震
空间分布
Guyuan earthquake
the modulation ratio of small earthquakes
moderate sensible earthquake
spatial distribution
