2012年6月24日永宁地震西昌沙层应变的地震前兆信息  

The possible connection between the Yongning Earthquake on 24 June 2012 and the data changes of the strain meter installed in sand pit in Xichang Seismic Central Station

作　　者：胡德军[1] 赵晶[1] 鞠岷 张建民[1] 

机构地区：[1]四川省地震局西昌地震中心站,四川西昌615022

出　　处：《四川地震》2015年第3期13-17,共5页Earthquake Research in Sichuan

摘　　要：分析了西昌沙层应变观测数据,在云南永宁5.7级地震前,仪器观测数据的变化似乎出现了一个与地震发生相关的加载、相持、卸载、短临及临震各阶段变化过程。结合沙层应变的孕震物理模型认为,西昌沙层应变观测仪器观测数据与其周围发生的地震有时间上的对应关系。We use the observation data of the strain meter installed in sand pit in Xichang Seismic Central Station to discuss the possible connection between the data change procedure and the Yongning Earthquake on 24 June 2012 . The data change procedure includes the loading,stalemating,unloading,short-term and impending phases. We re-late these data changes to the physical model of an earthquake preparation. So we think that the data change may indicate the occurring of an earthquake around.

关 键 词：沙层应变 观测数据 变化特征 统计关系 

分 类 号：P315.727[天文地球—地震学]