【摘要】 应用小波分析空间差分法分析了泾阳台、乾陵台、周至台和郑州台的Z分量的地磁磁静日Rq值的变化规律,结果显示,各台的磁静日Rq值有较一致的年变规律。分析泾阳台与其它各台的磁静日Rq差值分析和小波变换,发现1998年1月5日泾阳4.8级地震前4个月内存在较明显的异常变化,可能反映了泾阳地震的震磁效应。对远离泾阳台、乾陵台的青海昆仑山口西8.1级地震,震前也有明显异常变化。更多还原

【Abstract】 The magnetic data,R_q values,are analyzed by the methods of space difference value and wavelet analysis at all geomagnetic stations in Guanzhong region and Zhengzhou station.It is found the annual regularities of R_q value.And R_q value and wavelet are anomalous before earthquakes in four months at Jingyang station,especially before west pass of Kunlun mountain earthquake with Ms 8.1 at Jingyang and Qianling stations,it is shown the seismo-magnetic effect at Jingyang station.更多还原