2003年12月1日中哈交界M_S6.1级地震钻孔应变异常分析
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摘要
2003年12月1日在中国与哈萨克斯坦交界处发生了MS6.1级地震。震前,位于震中西南224 km的新疆 乌什台分量式钻孔应变仪记录到了明显的应变异常信息。经多次落实没有发现干扰,认定为是与地震有关的应 变异常。认为此次异常具有应变性质,呈压性、阶段性、节律性和张、压交替变化的波动性特点。深入分析乌 什台应变异常特征,总结此次地震的预测经验、教训,对以后的地震短临预测有实际意义。
An Ms6.1 Earthquake occurred in the boundary between China and Kazakhstan on 1 December 2003. Before this earthquake, the crustal strain change information of the deep hole was recorded clearly in Wushi Seismic Station located in southwest 224km from this earthquake. The crustal strain data before the earthquake show a compressed, with interval period and rhyme scheme strain changes.
An Ms6.1 Earthquake occurred in the boundary between China and Kazakhstan on 1 December 2003. Before this earthquake, the crustal strain change information of the deep hole was recorded clearly in Wushi Seismic Station located in southwest 224km from this earthquake. The crustal strain data before the earthquake show a compressed, with interval period and rhyme scheme strain changes.
引文
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[2] 新疆维吾尔自治区地震局.新疆维吾尔自治区地震震中分布及主要活动构造图(1:2500000)说明书[M].西安: 西安地图出版社,1997.
[3] 许昭永,杨润海,王彬等.突发应变扰动-一种新的破裂前兆的实验研究[J].地震学报,1998,20(6).
[4] Dieterich J H. Pre-seismic fault slip and earthquake prediction [J]. J Geophysics Res., 1978, 83.
[5] Dieterich J H. Potential for geophysical experiments in large scale tests [J]. Geophysics Res., 1981, 8.
[6] Ohnaka M. Earthquake source nucleation: a physical model for short - term precursors [J]. Tectonophysics, 1992, 211.
[7] Scholz C, Molnar P, Johnson Y.Detailed studies of frictional sliding of granite and implications the earthquake Mechanism [J]. J Geophysics Res., 1972, 77.
[8] 王泽皋,郭妍,李淑莲.大地震前的"震情三分律"[J].内陆地震,1989,3(3).
[9] 王泽皋.大同和阳高地震地震序列中的震情"三分律"现象[J].内陆地震,1990,4(1).
[10] 苏乃秦.试论全天山地震活动的韵律性[J].内陆地震,2000,14(1).
[11] 杨志荣.1987年1月24日新疆乌什6.4级地震前兆异常及其预报[J].中国地震,1987,3(4).
[12] 蒋靖祥,赖爱京,胡琼等.利用钻孔应变资料预报伽师强震群[J].西北地震学报,1998,20(2).
[13] 尹亮,等.昆仑山口西8.1级地震前高台钻孔应变异常[J].大地测量与地球动力学,2002,22(4).
[14] 张晓青,顾永康.昆仑山口西8.1级地震前青海省形变及地温前兆特征分析[J].高原地震,2002,14(1).
[15] 朱航,李志君.利用攀枝花台压容应变资料预测强震[J].四川地震,2001,(3).
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