攀枝花和姚安地震前云南省数字化前兆资料的异常分析

Anomaly changes of observation data from Digitalized Seismic Stations in Yunnan Province before Panzhihua and Yaoan Earthquakes

2008年8月30日四川攀枝花发生6.1级地震,2009年7月9日姚安发生6.0级地震。笔者统计了震前距震中210 km范围内云南省的"九五"及"十五"数字化前兆资料,发现部分资料在两次地震前有很好的短临异常显示。数字化仪器是"九五"和"十五"期间逐步安装应用的,数字化仪器与模拟仪器相比,数据量大,数据精确度高,能提取更多、更丰富的来自地下的信息。因此,数字化仪器最终将取代模拟仪器。加强对数字化前兆资料的分析研究、探索及应用,是一项新的研究课题,也是提高地震预报成功率的有效途径。

An M6.1 Earthquake struck Panzhihua City,Sichuan Province,on 30 August 2008 and another earthquake struck Yaoan near Panzhihua City,Yunnan Province,on 9 July 2009.After earthquakes we collect precursor data,which are observation of digitalized instruments of projects of the 9th and 10th Five-year Plan,measured seismic stations with a radius of 210 kilometers.We find that before these two earthquakes some of precursory changes of the observation data are presented clearly.The observation data of digitalized ...