| 山西河津地震前临汾台倾斜及应变异常特征分析 |
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| 引用本文： | 李艳,高振强,冯建琴,荆红亮,张仰辉.山西河津地震前临汾台倾斜及应变异常特征分析[J].山西地震,2011(1). |
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| 作者姓名： | 李艳 高振强 冯建琴 荆红亮 张仰辉 |
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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,044400;太原大陆裂谷动力学国家野外科学观测研究站,山西,太原,030021 |
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| 基金项目： | 2010年中国地震局科研监测预报合同制课题; 2010年山西省地震局科研课题(SBK-1024)部分内容 |
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| 摘 要： | 通过分析2010年1月24日河津MS4.8地震前临汾台倾斜仪、应变仪资料,发现自1月上中旬开始,石英摆、体应变、垂直摆出现明显的加速、转折、高频突跳等异常反映;经小波函数分段计算得知,3仪器均在震前7天左右记录到明显的高频异常信息;震前1月宽带垂直摆(实验仪器)SN向连续出现错位(掉格)现象;各测项在异常时间出现的进程上呈明显准同步性特征。
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| 关 键 词： | 倾斜仪 应变仪 高频信息 错位掉格 同步特征 |
Titer and Strain Anomalous Characterizes at Linfen Seismological Station before Hejin Earthquake |
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| LI Yan,GAO Zhen-qiang,FENG Jian-qin,JING Hong-liang,ZHANG Yang-hui.Titer and Strain Anomalous Characterizes at Linfen Seismological Station before Hejin Earthquake[J].Earthquake Research in Shanxi,2011(1). |
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| Authors: | LI Yan GAO Zhen-qiang FENG Jian-qin JING Hong-liang ZHANG Yang-hui |
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| Institution: | LI Yan1,2,GAO Zhen-qiang1,FENG Jian-qin1,JING Hong-liang1,ZHANG Yang-hui1,2(1.Linfen Central Seismological Station of Earthquake Administration of Shanxi Province,Linfeng 044400,China,2.Continental Rift Valley Dynamics State Observatory of Taiyuan,Taiyuan 030025,China) |
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| Abstract: | Through the analysis on the tilt and strain observation data of Linfen Central Seismological Station before Hejin Ms4.8 earthquake on January 4th,2010,some anomalies,including obvious acceleration,turn and sudden high-frequency jump of quartz pendulum,body strain and vertical pendulum,are found since early middle of January.The segmented calculation by using wavelet function indicate that 7 days before the earthquake,all records of the three instruments have obvious high-frequency information.In addition,th... |
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| Keywords: | tiltmeter strainmeter high-frequency information dislocation and drift synchronous characteristics |
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