河北永清4.3级地震重、磁异常分析  

Analysis of the Gravity and Magnetic Anomalies of the Yongqing M4.3 Earthquake in Hebei

作　　者：张娜 龚燕民 苏树朋 ZHANG Na;GONG Yanmin;SU Shupeng(Baoding Center Seismic Station,Baoding 071051,China;Yixian Seismic Station,Yixian 071051,China)

机构地区：[1]保定地震中心台,河北保定071051 [2]易县地震台,河北易县071051

出　　处：《华南地震》2020年第3期49-54,共6页South China Journal of Seismology

基　　金：2014年河北省地震局星火计划项目(DZ20140710032)。

摘　　要：对永清4.3级地震进行重力场、流磁场的空间分析,结果表明:地震前重力场、岩石圈磁场均出现异常;岩石圈磁场震前异常明显,震后异常减弱、消失;重力场震前一般持续下降转而上升中,将会发生地震。The article conducted a spatial analysis of the gravity field and flow magnetic field of the Yongqing M4.3 earthquake,and the results showed that the gravity field and the lithospheric magnetic field were abnormal before the earthquake;the anomaly of lithospheric magnetic field was obvious before the earthquake,and the anomaly weakened and disappeared after the earthquake;before the earthquake,gravity field generally continued to decline and then rise,and there will be an earthquake.

关 键 词：流动重力 流动地磁 异常 永清地震 

分 类 号：P318.5[天文地球—固体地球物理学]