| 青海海西6．4级地震前临汾台石英摆及大地电场短临异常分析 |
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| 引用本文： | 李艳,高振强,荆红亮,冯建琴,徐洁.青海海西6．4级地震前临汾台石英摆及大地电场短临异常分析[J].山西地震,2010(1):30-32,45. |
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| 作者姓名： | 李艳 高振强 荆红亮 冯建琴 徐洁 |
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| 作者单位： | 山西省地震局临汾中心地震台,山西,临汾,041000;太原大陆裂谷动力学国家野外科学观测研究站,山西,太原,030025 |
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| 摘 要： | 通过分析青海海西6．4级地震前临汾台各项前兆资料，发现震前6天石英摆SN向记录到明显的前驱波现象；震前1天大地电场Ew向长、短极距比值出现明显突跳异常，震前2h记录到临震异常扰动信号。
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| 关 键 词： | 前驱波 地电场 临震异常 |
Analysis on Short-Impending Anomalies of Linfen Quartz Tiltmeter and Geoelectic Field before the Haixi, Qinghai M6.4 Earthquake |
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| LI Yan,GAO Zhen-qiang,JING Hong-liang,FENG Jian-qin,XU Jie.Analysis on Short-Impending Anomalies of Linfen Quartz Tiltmeter and Geoelectic Field before the Haixi, Qinghai M6.4 Earthquake[J].Earthquake Research in Shanxi,2010(1):30-32,45. |
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| Authors: | LI Yan GAO Zhen-qiang JING Hong-liang FENG Jian-qin XU Jie |
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| Institution: | LI Yan1,2),GAO Zhen-qiang1,JING Hong-liang1,FENG Jian-qin1,XU Jie1,2)(1.Lifen Central Seismological Station of Earthquake Administration of Shanxi Province,Lifen 041000,China,2.National Continental Rift Valley Dynamics Observatory of Taiyuan,Taiyuan 030025,China) |
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| Abstract: | By analysis of each precursor data of Linfen central seismological station before the Haixi,Qinghai Ms6.4 earthquake,it is found that the pronounced precursor wave was recorded by quartz tiltmeter in SN direction 6 days prior to the earthquake.Meanwhile,obvious jump anomaly of ratio values of short polar distance over long one of geoelectric field in EW direction one day prior to the earthquake and impending anomaly 2h prior to the earthquake turned up,respectively. |
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| Keywords: | precursor wave geoelectric field impending earthquake anomaly |
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