昌宁5.1级地震前潮汐形变短临异常识别  

Identification of short-impending tidal deformation anomaly before Changning M_L 5.1 earthquake

作　　者：何应文 匡福江 曹白伦 段勇 杨树锋 张源 杨海鹏 杨建文[3] He Yingwen;Kuang Fujiang;Cao Bailun;Duan Yong;Yang Shufeng;Zhang Yuan;Yang Haipeng;Yang Jianwen(Yunxian Seismic Station, Yunnan Province 675803, China;Yunlong Seismic Station, Yunnan Province 672700, China;Yunnan Earthquake Agency, Kunming 650041, China)

机构地区：[1]云县地震台,中国云南675803 [2]云龙地震台,中国云南672700 [3]云南省地震局,中国昆明650041

出　　处：《地震地磁观测与研究》2017年第3期107-112,共6页Seismological and Geomagnetic Observation and Research

基　　金：2017年震情跟踪定向工作任务;监测;预测;科研三结合项目;课题名称:大气降水对数字化地倾斜观测干扰特征分析

摘　　要：2015年10月30日19时26分39秒昌宁发生M_L 5.1地震,收集地震前90天云县地震台潮汐形变观测资料,利用倾斜固体潮Nakai拟合检验方法行处理与分析。结果发现,在该地震发生前2—3个月,云县地震台出现趋势异常和非潮汐形变地震短临异常。Using the“Nakai”fitting test of tilt tide analysis method,the deformation observation data of Yunxian Seismic Station which is90days before the ML5.1earthquake in Changning on October30th,2015are processed and analyzed.The result shows that in about2to3months before the earthquake,some short-impending anomalies and trend anomalies are recorded at Yunxian Seismic Station.

关 键 词：昌宁地震 潮汐形变 短临异常 地震前兆 

分 类 号：P315.7[天文地球—地震学]