中小地震的流磁异常信息  

Anomaly information about mobile geomagnetic survey for moderate and minor earthquakes

作　　者：刘义高[1] 方谦[1] 郎效龄[1] 汪继林[1] 

机构地区：[1]安徽省地震局,安徽合肥230031

出　　处：《华南地震》2003年第1期1-6,共6页South China Journal of Seismology

摘　　要：在孕震区形成期间 ,流动地磁测线各测点的局部地磁场因受孕震区应力场的主控 ,可能出现δf“同向”变化的现象 ,从而整条测线同一期各测点或同是δf >0 ,或同是δf <0。笔者认为整条流动地磁测线同一期各测点出现δf“同向”变化 。When the seismogenic zone formed,these local geomagnetic field at all stakes along mobile geomagnetic survey line changed 'in same direction',that is δf>0 or δf<0 in same line and same survey period.Because these local geomagnetic fields of mobile δf at all stake in same line and same survey period changed 'in same direction', it may be anomaly information; Moderate and minor earthquake will occur near the survey line.

关 键 词：中小地震 孕震区 应力场 流动地磁异常信息 地磁场 地震前兆 

分 类 号：P315.721[天文地球—地震学]