【摘要】 利用松潘-平武周边地区的地震资料研究了1970-1975年该地区地震视应变场的分布和时空变化特征。结果表明,地震视应变的时空变化与松潘-平武强震具有很好的对应关系,1970年在附近就出现异常区,并且地震视应变总体上逐年增加,地震就发生在地震视应变异常区。更多还原

【Abstract】 The distribution and space-time change characteristics of the seismic apparent strain field in Songpan-Pingwu and the adjacent areas since 1970 to 1975 are studied,using the seismic data of this region.The result shows that there is a rather well corresponding relationship between the anomalous region of seismic apparent strain and the Songpan-Pingwu earthquakes in 1976.The anomalous region appeared in 1970 and the strain values increased year by year,the events occurred just in the anomalous region.更多还原