| 余震序列的持续时间ht |
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| 引用本文： | 周蕙兰,房桂荣,章爱娣,姜长宁.余震序列的持续时间ht[J].地震学报,1982,4(1):45-54. |
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| 作者姓名： | 周蕙兰 房桂荣 章爱娣 姜长宁 |
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| 作者单位： | 中国科技大学 |
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| 摘 要： | 研究了近年来我国39个较大地震的余震序列的持续时间的一般特征及其与主震应力降、主震后波速比负异常的关系。提出了以震后波速比由下降变为上升的转折点将余震活动分为早期和晚期两个阶段的看法,并阐述了不同阶段余震的不同活动规律。
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THE DURATION OF THE AFTERSHOCK SEQUENCE |
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| Institution: | University of Science and Technology of China |
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| Abstract: | Based on the analysis of the general characteristics of the durations of the aftershock sequences of 39 relatively larger earthquakes in China in recent years and their relation with the stress drops of the main shocks and the negative anomaly of the seismic wave velocity ratios after the main shocks, a tentative idea has been advanced that the aftershock activity of an earthquake can be separated into two stages by the transition point of the seismic wave velocity from decreasing to increasing after the main shock, and a discussion made of the characteristics of the aftershock activity in each of the two stages. |
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