【摘要】 本文根据丁鉴海 1等的统计方法 ,对龙岩地震台 1 989年以来CB - 3地磁观测资料统计分析 ,发现龙岩及周边地区中强地震前 ,龙岩台地磁观测资料实测值与一般多项式拟合值之差值曲线 ,垂直分量Z超出两倍中误差下限呈负异常时、地磁磁偏角D超出两倍中误差时 ,几个月后有可能发生中强震 ;震级大小与异常持续时间成正比 ;震中距台站在 1 0 0公里以内。更多还原

【Abstract】 According to the statistics method from Ding Jianhai, the paper carried out statistic analysis to CB-3 geomagnetic observing data in Longyan station since 1989, it was shown that before middle- stronger earthquakes in Longyan and its vicinities , the geomagnetic observing data in Longyan station that the different value curve between the actual observing value and normal multinomial fixing value when Z component the magnetic declination D exceed the lower limit of twice middle error, it is possible that middle and stronger earthquakes occurrence; the magnitude direct to the duration time;The epicenter is in 100km.更多还原