地殻の歪と傾斜の観測異常値と地震発生との相関

Abstract

The continuous obsevationsof the several cimponents of the crustal movement which have been consisted of the linear strains and the tilts have been performed in the Osakayama Tunnel of the old Tokaido Railway Line for about thirty years. And the observation of the ground water level has been perfprmed in the tunnel for about twenty years.Then, the correlations, the partial correlations and the multiple correlation coefficients among the observed anomalies of these linear strains or thses tilts, the annual frequencies of the felt earthquake in Kyoto city and the observed anomalies of the ground water level have been calculeted.According to these calculations, most of the observed anomalies of thses linear strains and them have low correlations with the anomaly of the ground water level. And it finds that most of the coeffcients of thses correlations have changed remarkably since 1976.