河北省及邻区中等地震活动前的地磁异常

THE GEOMAGNETIC ANOMALIES BEFORE MEDIUM EARTHQUAKES IN HEBEI PROVINCE AND ITS ADJACENT AREA

摘要: 给出了2001年7月份发生在河北省及邻区一组地震活动前的地磁异常和震前对地震进行了不同程度的预测。对异常与地震的关系进行了分析,认为地磁方法不但对较强地震反应明显,而对相对平静期的显著地震也有所显示。

Abstract: the geomagnetic anomalies before a group of earthquakes occurred in Hebei Province and its adjacent area in Jul.of 2001 are presented.Some extent prediction was given before one earthquake.Through analysis to the relation of anomalies with earthquake,it is conclude that the geomagnetic anomalies indicate not only stronger earthquakes,but also the earthquakes in relatively calm period.