大华北ML≥4.5级地震序列型式初步研究
PRELIMINARY STUDY OF THE EARTHQUAKE SEQUENCES PATTERNS OF ML≥4.5 IN LARGE NORTH CHINA
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摘要: 本文给出了1970年以来大华北84个ML≥4.5级地震序列,并将其划分为12种序列型式,3种蕴震型式,2种发震型式和3种变化型式,探讨了它们的分布特征。这一工作有助于大华北地区地震活动性分析。Abstract: This paper gives 84 earthquakes occured in the Large North China from 1970 to 1984j divides them into 12 sequences patterns, 3 earthquake preparation patterns, 2 quaking patterns and 3 change patterns; and discusses the distribution features of them. This is helpful for the analysis of seismicity in North China.
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