【摘要】 首先介绍了怀来４ 井地质构造情况，然后根据怀来４ 井１９８９—１９９８ 年水汞观测资料，分析了４ 次中强地震前汞量异常与地震的关系。结果显示，怀来４ 井汞量异常与地震前的地震活动异常有较好的对应关系。更多还原

【Abstract】 In this paper,the geological structure of Huailai No.4 well has been introduced first,then the relationship between the mercury anomalies and earthquakes before 4 moderately strong earthquakes has been analyzed according to the mercury observtion data in Huailai No.4 well from 1989 1998.The result shows that the mercury anomalies showed a relatively good corresponding relation to the seismic activity anomalies before earthquakes.更多还原