应用极值理论研究台湾和华东地区中强地震活动的相关性
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摘要
运用极值分布理论对1970~1999年间台湾和华东地区的地震资料进行统计性研究,得出其地震相应震级的复发周期[T(M)]、理论发震次数(η)和华东地区中强地震的发震概率阈值(PO)。通过对T(M)的同比分析,发现两地中强地震存在着较好的相关性。用以上研究的结果对华东地区5级以上地震的发震概率、发震时间和地震强度进行综合判定,效果较好。
A statistical study is made of the data of earthquakes in Taiwan and in East China between 1970~1999 using extremevalue theory. As a result, the recurrence periods , the theoretical frequences (n) for earthquakes of various magnitudes as well as the thresholds of the probability of earthquake occurrences (P0) for moderate earthquakes in East China region are obtained. Based on a comparative analysis of the T(M), it is found that rather good correlation exists between the moderate earthquakes in the two regions. A combined a posterior estimation is made of the probabilities of earthquake occurrence, the origin times and the magnitudes for the earthquakes with magnitude above 5 in the East China region in this period using the results of the above mentioned study and rather good results are obtained.
引文
[1] 陈培善,林邦慧.极值理论在中长期地震预报中的应用[J].地球物理学报,1973(16):6-16.
    [2] 郭绍忠,马殿军.极值理论在滇西北强震预报中的作用[A].董国胜,张朝方主编.多震区地震研究[C].昆明:云南科技出版社,1994.55-59.

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