与澜沧大震可能相关的震磁效应——小波分析一例  

Possible Seismo-magnetic Effect of the Lancang Strong Earthquake——Wavelet Analysis Results

作　　者：陈伯舫 

机构地区：[1]中国香港元朗怡丰花园B座26楼3室,中国香港

出　　处：《华南地震》2006年第2期16-19,共4页South China Journal of Seismology

摘　　要：用小波法分析了与1988年澜沧大震相关的通海台地磁Z分量资料。小波分析结果显示地震前“日变幅差”ΔTg(24)存在可能的异常变化;异常为正异常,异常幅度很大,异常结束后立即发生了地震。The geomagnetic Z-components for Tonghai observatory before and after the Lancang great earthquake （Ms=7.5） are analyzed by using the wavelet transform technique. The results indicate that ＇the amplitudes of the diurnal variations＇ , derived from the wavelet transform, appear to be anomalous. Before the Lancang earthquake there is a positive change in the variations of ΔTg （24） . The magnitude of the positive change is significant, and the earthquake occurred at the end of the anomalous change.

关 键 词：小波变换分析 1988年澜沧7.5级地震 通海地磁台 泉州地磁台 仑坪地磁台 

分 类 号：P315.721[天文地球—地震学]