【摘要】 首先对兰州地磁台的基本情况进行了简要叙述,利用该台1974年1月～2002年7月的地磁Z日变化“低点位移”观测结果,对甘肃及邻区在相同时段内发生的MS≥5.0以上的地震进行统计分析,探讨其震磁关系,以及映震效果在空间上的分布特征,为地震的短临预报提供一定的参考依据。更多还原

【Abstract】 In this paper the basic situations of Lanzhou magnetic station is described in brief at first. Then using the geomagnetic Z component data observed in this station during Jan 1974 to July 2002, we analyzed the statistical relation between the earthquakes ( MS≥5.0 ) occurred in Gansu province and its vicinity area and the minimum value displacement in the daily variation of geomagnetic Z component. The spatial distribution feature of the relation is also discussed. These results are helpful for the short-term earthquake prediction.更多还原