【摘要】 1998年 1月 1 0日张北发生 Ms6.2级地震 ,地震前 5d～ 2 4 d,在全国范围内出现 4次地磁日变低点位移异常现象。本文对地磁日变低点位移现象的物理基础进行了初步探讨 ,对地磁日变低点位移异常预报地震的方法作了简要介绍 ,对地磁日变低点位移异常与张北地震的关系进行了分析 ,认为张北地震前出现的地磁日变低点位移异常是该次地震的前兆反映。更多还原

【Abstract】 to 24 days before zhangbei Ms6.2 earthquake (January 10,1998),the geomagnetic low point displacement in daily change(GLPDDC)showed 4 times abnormal in China.In this paper we preliminarily discussed the physical basis of GLPDDC,and briefly introduced the prediction method with GLPDDC anomalies.Through the analysis of the relation between GLPDDC anomalies and the Zhangbei earthquake,we believed that the GLPDDC anomalies before Zhangbei quake were the precursors of the quake.更多还原