DISUSSION ON SOME OF THE PKACTIZATION INDICES FOR IMMINENT PREDICTION OF MEGASEISMS
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    Abstract:

    In the paper,we statistically analyze the sudden impending earthquake anomalies and obvious trend anomalies of all kinds of precursors of 11 great earthquakes (Bohai Ms7.4, Luhuo Ms7.9,Yongshan Ms7.1 ,Haicheng Ms7.3,Longling Ms7.4,Tangshan Ms7.8,Songpan Ms7.2,Daofu Ms6.9 Wuqia Ms7.4,Lancang Ms7.6,Gonghe Ms7.0)in Chinese continent from 1969 to l990 by synthesizing many stages and phenomena. Then we study the whole characters and physical explaination of sudden anomalies before the megaseisoms,summarize the evolutionary law of time, space and intensity(or frequence)of each precursory anomaly.the distributing law of the item-and-frequency of the sudden impending earthquake anomalies with titne(the intenrval from sudden changes to eartbqllake occurrence)and the constitutional and synchronous laws of these anomalies,and discussthe com-prehensive methods distinguishing imminent anomalies of megaseisms,the synthetic indices of imminent predic-tion and the effectively temporal predIction.

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  • Received:
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  • Online: July 04,2017
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