短期综合前兆异常信息量方法在四川的应用

Quantitative method application to the abnormal information of the shortterm comprehensive precursor in Sichuan Province

用地震异常前兆信息量综合数学表达式的方法,选择四川地区映震较好的前兆观测资料,进行地震短期异常前兆信息量的提取,分析四川地区地震短期异常前兆信息量综合时序值变化与四川及邻区6级以上强地震的关系,给出了四川及邻区6级以上地震短期综合预测的指标和方法,该方法能通过R值评分检验。用同样的方法提取不同学科前兆信息量地震短期综合预测的指标和方法,并进行地震预测效能检验,结果表明,不同学科前兆信息量短期综合地震预测效能存在一定的差异。

Acoording to the mathematics expressions of the quantitative method to the abnormal information of the short- term comprehensive precursor, we try to extract the abnormal information of short- term comprehensive precursor from the various kinds of the observing data in Sichuan Province. The abnormal information related to the earthquakes are tested with the comprehensive estimating method of R - value. Then we analyze the statistic relationship between the curve change of the short - term comprehensive precursor and the earthquakes magnitude with egual to great than 6.0 occurred in Sichuan region and present the short - term indexes for the comprehensive earthquake prediction. Our results show that there are some of effect differences for the short- term comprehensive prediction among various kinds of the precursor obsereving data with different observation subjects.