姑咱台 SS - Y 伸缩仪数字化观测数据异常分析

摘要

以姑咱地震台 SS - Y 伸缩仪2007年至2013年12月的日均值资料作为研究对象，分析日均值资料的年变特征；对2007年以来甘孜藏族自治州及邻区发生的几次中强地震前 SS - Y 仪的异常变化进行了分析研究，对该观测项数字化资料的映震能力获得了初步认识，有利于挖掘数字化资料中的地震前兆异常信息。%Based on the observation data of the digitalized strain-meter SS-Y from 2007 to 2013 in Guza Seismic Sta-tion,the annual change characters are summarized from the average of each day observation data. We relate these changes with the earthquakes occurred in Ganzhi Autonomous Prefecture and nearby areas and find that the statisti-cal correlation between the data abnormal changes and earthquakes can be helpful to earthquake prediction in this region.