| 北天山流动水准测量资料前兆异常分析 |
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| 引用本文： | 朱治国,李杰,方伟,王治民,刘代芹.北天山流动水准测量资料前兆异常分析[J].内陆地震,2010,24(3):247-252. |
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| 作者姓名： | 朱治国 李杰 方伟 王治民 刘代芹 |
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| 作者单位： | 新疆维吾尔自治区地震局,新疆乌鲁木齐830011 |
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| 摘 要： | 应用卡尔曼滤波法计算处理了北天山地区跨断层流动水准观测资料,分析了断层异常特征。结果表明,北天山地区跨断层流动水准资料较好地反应了各断层地震前后地壳垂直形变运动特征。流动水准测量对北天山地区5~6级以上地震有较好的震前反映,前兆信息明显。跨越同一断层的各水准测线垂直运动速率不一致一定程度上显示了地震前兆异常,速率变化大小对地震震级具有一定预示意义。
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| 关 键 词： | 卡尔曼滤波 跨断层流动水准 前兆异常 北天山 |
ANALYSIS ON ABNORMALITY OF MOBILE LEVEL MEASUREMENT DATUM IN NORTH TIANSHAN |
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| ZHU Zhi-guo,LI Jie,FANG Wei,WANG Zhi-min,LIU Dai-qin.ANALYSIS ON ABNORMALITY OF MOBILE LEVEL MEASUREMENT DATUM IN NORTH TIANSHAN[J].Inland Earthquake,2010,24(3):247-252. |
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| Authors: | ZHU Zhi-guo LI Jie FANG Wei WANG Zhi-min LIU Dai-qin |
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| Institution: | (Earthquake Administration of Xinjiang Uygur Autonomous Region,Urumqi 830011,Xinjiang,China) |
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| Abstract: | Calculating mobile level datum in northern Tianshan by Kalman filter method,and analyzing anomaly characteristics of fault.The result shows,the variation of observation data reflected crust vertical deformation movement characteristics of all faults in northern Tianshan.The mobile level observation datum have obvious abnormity before the MS5-6 earthquakes in the northern Tianshan region.The vertical velocity of level line are different show precursor abnormality,and velocity can show the magnitude. |
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| Keywords: | Kalman filter Fault-crossing mobile level Precursory anomaly North Tianshan |
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