吉林汪清深源地震前榆树地震台地电阻率异常分析*
史红军1,赵卫星1,庞晶源2

(1.长春市地震局榆树地震监测台,长春 130400; 2.吉林省地震局,长春 130022)

深源地震; 地电阻率; 异常; 榆树地震台; 吉林

Earth Resistivity Anomalies Observed at Yushu, Changchun, Station before Two Wangqing Deep Earthquakes
SHI Hong-jun1, ZHAO Wei-xing1,PANG Jing-yuan2

(1. Earthquake Station of Yushu, Earthquake Administration of Changchun City, Yushu 130400, Changchun, Jilin China)(2. Earthquake Administration of Jilin Province, Changchun 130022, Jilin China)

deep earthquake; earth resistivity; anomaly; Yushu earthquake station; Jilin

备注

运用形态法、各向异性度法及速率法对长春市地震局榆树地震监测台地电阻率资料进行了分析,结果表明,在吉林汪清两次7.0级以上深源地震前,该台地电阻率存在明显的异常变化,属于中、短期异常。

The earth resistivity data at the Yushu, Changchun,station were analyzed by using shape analysis, anisotropic degree and velocity rate methods. It is found that the earth resistivity showed obvious middle- and short-term anomalies before two deep earthquakes(MS≥7.0)in Wangqing of Jilin.