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吉林汪清深源地震前榆树地震台地电阻率异常分析
Earth Resistivity Anomalies Observed at Yushu,Changchun,Station before Two Wangqing Deep Earthquakes
【摘要】 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。
【Abstract】 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.
【关键词】 深源地震;
地电阻率;
异常;
榆树地震台;
吉林;
【Key words】 deep earthquake; earth resistivity; anomaly; Yushu earthquake station; Jilin;
【Key words】 deep earthquake; earth resistivity; anomaly; Yushu earthquake station; Jilin;
【基金】 国家科技支撑计划项目(2006BAC01B02-04-03);中国地震局地震联合基金(102058)资助
- 【文献出处】 地震研究 ,Journal of Seismological Research , 编辑部邮箱 ,2008年03期
- 【分类号】P315.722
- 【被引频次】3
- 【下载频次】40