盐城台-杭州台地磁幅相法临震异常标志体系  

MARKER SYSTEM INDEX OF IMMINENT EARTHQUAKE ANOMALY OF GEOMAGNETIC AMPLITUDE-PHASE METHOD FOR YANCHENG AND HANGZHOU STATION DATA

作　　者：蒋延林 王建宇[2] 赵卫红 

机构地区：[1]江苏省高邮地震台,江苏高邮225601 [2]江苏省地震分析预报中心,江苏南京210014

出　　处：《地震学刊》2000年第1期45-48,共4页Journal of Seismology

基　　金：中国地震局三结合课题!(1998年度 )

摘　　要：用江苏盐城台与浙江杭州台组成台组 ,应用线性去倾及二次去倾的幅相法提取了临震标志指标 ,对上述两台站的 8年地磁Z分量日变资料进行分析 ,发现对江苏地区ML5 0以上地震有较好的映震关系且标准值L一直保持在一个固定值 ,其标志体系受人为干扰较小 ,异常的可信度较高 ,但虚报、漏报率有待进一步降低。Combining the Yancheng Seismological Station of Jiangsu Province and Hangzhou one of Zhejiang Province, the marker index of imminent earthquake is obtained using the amplitude and phase method of the linear and quadric elimination of magnetic dip, and Z component data of two stations for eight years are analysed. It is finded that the index very well respond to Jiangsu earthquakes of M L>5.0, and normal value L is stable, which is lightly disturbed by artificial factor, and has high reliablity.

关 键 词：地磁幅相法 临震异常标志 指标 地震预报 

分 类 号：P315.7[天文地球—地震学]