地磁加卸载响应比在东北地区中强地震映震关系分析  

Analysis of the Relationship Between the Geomagnetic Loading and Unloading Response Ratio and the Moderate Strong Earthquake in Northeast China

作　　者：岳力 贾秀玲 张彦吉 王海涛 胡澜缤 陈林楠 YUE Li;JIA Xiu-ling;ZHANG Yan-ji;WANG Hai-tao;HU Lan-bin;CHEN Lin-nan(Tonghe Seismic Station,Heilongjiang Harbin 150900,China)

机构地区：[1]通河地震台,黑龙江哈尔滨150900

出　　处：《防灾减灾学报》2018年第3期54-58,共5页Journal of Disaster Prevention And Reduction

摘　　要：应用地磁加卸载响应比方法,分析东北地区地磁观测台站2008—2017年地磁Z分量日变幅加卸载响应比异常高值,结合东北地区M5.0级以上地震震例资料,分析得出加卸载响应比出现异常高值对东北地区短期内发生M5.0级以上地震有较好的指示性意义。By Appling the geomagnetic load-unload response ratio method, the daily variation of the Z component of LURR anomaly high value at the geomagnetic observation stations in Northeast China was analyzed from 2008 to 2017. Combined with M ≥5.0 earthquake cases data in Northeast China, the abnormal high value of load-unload response ratio is concluded, which has indicative meaning to M≥5.0 earthquakes in Northeast China.

关 键 词：地磁加卸载响应比 地磁Z分量日变化 震前异常 

分 类 号：P315.72[天文地球—地震学]