应力应变短临跟踪预报方法的研究
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摘要
从我省应力应变台站 2 0多年的资料中 ,选取对应河北省及其邻近地区中强以上地震的 60多个实例进行了统计分析。表明应力应变异常形态的时间特征与地震的孕育和发生有较明显的关系。依据异常的“出现、转折、结束”等特征 ,总结了短期和短临预报的方法和指标 ,对发震时间进行追踪分析 ;对震级和震中距的预报也进行了探讨。
We analyzed more than 60 examples from our 20 years stress and strain data that coincide with earthquakes in Hebei province and its adjacent area with statistics.The results show that the anomalies' shape character of stress and strain has obvious relation with the development and occurring of earthquakes.Based on the characters of anomalies'“appearance,turning,end”etc.,we concluded some index for short term and imminent eqrthquake prediction,and also discussed how to prediec the time of occurrence,magnitude,and distance of epicenter for an earthquake.
We analyzed more than 60 examples from our 20 years stress and strain data that coincide with earthquakes in Hebei province and its adjacent area with statistics.The results show that the anomalies' shape character of stress and strain has obvious relation with the development and occurring of earthquakes.Based on the characters of anomalies'“appearance,turning,end”etc.,we concluded some index for short term and imminent eqrthquake prediction,and also discussed how to prediec the time of occurrence,magnitude,and distance of epicenter for an earthquake.
引文
1 王吉易 ,等 .异常系列分析预报方法 .华北地震科学 ,1991,9( 1) :91— 93
2 马兴国 ,等 .1991年山西、河北中强地震前地应力异常特征与地震预报 .华北地震科学 ,1994 ,12 ( 1) :6 6— 70
2 马兴国 ,等 .1991年山西、河北中强地震前地应力异常特征与地震预报 .华北地震科学 ,1994 ,12 ( 1) :6 6— 70
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