地磁场短周期变化与b值异常关系的研究

STUDY OF THE RELATIONSHIP BETWEEN THE SHORT-PERIOD VARIATION OF GEOMAGNETIC FIELD AND B-VALUE ANOMALIES

本文对唐山7.8级、荷泽5.9级、隆尧5.8级三次地震前地磁短周期变化和b值异常的变化特征进行了分析研究,并从孕震过程的角度初步探讨了它们之间可能存在的某种联系和规律,对于地震预报、综合分析和判断或许是有益的。

This paper analytically studies the characteristies of the short-period variations of goomagnetic field and changes in b-value anomalies respectively prior to the M 7.8 Tangshan, M 5.9 Heze and M 5.8 Longrao earthquakes. Starting from the view-point of scismogenetic process, the possible correlation between the two variations and the regularity of the changes are dealt with in the paper. Our study might benefit the comprehensive analysis in earthquake prediction studies and corresponding decision-making.