THE STUDY OF INFORMATION MAGNITUDE OF EARTHQUAKEPRECURSORS (Ⅲ) THE APPLICATION OF INFORMATION MAGNITUDE METHOD OF EARTHQUAKE PRECURSORS IN THE STUDY OF DATONG EARTHQUAKE
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摘要: 本文采取统一分析模式,系统地研究了1989 年大同5.8 级地震前河北省及其邻近地区各种前兆观测手段所出现的异常变化,并计算了这些异常所提供的前兆信息量,在此基础上,得到了大同地震之前前兆信息场的时、空动态图像,发现1989 年大同5.8 级地震前,河北省及其邻近地区前兆信息场,先在震源附近及外围出现,尔后向震源区边缘迁移集中,在保持震源区边缘较强信息的同时,前兆信息又向外围扩展,不久即发生地震。Abstract: In this paper,based on the method of calculating earthquake anomalous precursory information magnitude given by document[1],the anomalous variations of presentation of various precursory observation means in Hebei province and its vicinity before 1989 Datong Ms 5.8 earthquake were analysed in a systematic way and precursory information magnitude provided by these anomalies was calculated.On the basis of this,the dynamic images of precursory information field in time and space before Datong earthquake were got up and its evolution active characteristics were studied.
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Key words:
- Datong /
- precursory information field /
- evolution characteristic
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[1] 1 平建军, 王秀英,地震前兆信息量的研究, (二)地震前兆信息量的综合数学表达式, 华北地震科学, 1999, 17 (3).
2 罗兰格,等. 河北地区地震前兆观测台网的监测能力的评定,地震, 1985. 12(5). -

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