2016年云南云龙5.0级地震前中短临异常特征  

Characteristics of the medium-term,short-term,and impending anomalies before Yunlong M;5 earthquake in Yunnan in 2016

作　　者：杨芬 赵丽兰 YANG Fen;ZHAO Lilan(The Laboratory Office in Western Yunnan Earthquake Prediction of China Earthquake Administration,Yunnan Province 671000,China;Dali Vocational and Technical College of Agriculture and Forestry,Yunnan Province 671003,China)

机构地区：[1]中国地震科学实验场大理中心,中国云南671000 [2]大理农林职业技术学院,中国云南671003

出　　处：《地震地磁观测与研究》2021年第6期59-67,共9页Seismological and Geomagnetic Observation and Research

基　　金：中国地震局监测、预测、科研三结合课题(编号:CEA-JC/3JH-162502)。

摘　　要：2016年5月18日云南云龙5.0级地震前,地震活动性、地下流体和滇西实验场综合预测方案出现中、短临异常。地震活动性存在云南5级以上地震平静、中甸中等地震窗活动以及滇西2015年以来4级以上地震成条带分布等中期异常。2015年11月中旬至2016年5月中旬云南地下流体呈现不同测点同测项同步性异常和同测点不同测项同步性异常的短临异常现象。滇西实验场综合预测方案于2016年2月24日达到短临预测指标。Before the Yunlong M;5 earthquake in Yunnan on 18 May 2016,seismic activity,underground fluid,and the comprehensive prediction scheme of the western Yunnan experimental field show medium-term,short-term,and impending anomalies.The seismic activity anomalies are middle-term,including M;≥5 seismic quiescence,seismic window in Zhongdian,and the seismic belts of M≥4 earthquakes in western Yunnan in Western Yunnan since 2015.From mid-November 2015 to mid-May 2016,the underground fluid in Yunnan showed synchronous short-term anomalies in the same measuring item at different measuring points and in different measuring items at the same measuring point.The comprehensive prediction scheme of the Western Yunnan experimental field reached the short-term prediction index on 24 February 2016.

关 键 词：云龙5.0级地震 震兆 前兆 综合预测方案 中短临异常 

分 类 号：P315.72[天文地球—地震学]