| 强余震持续时间的早期估计 |
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| 引用本文： | 周翠英,张宇霞.强余震持续时间的早期估计[J].中国地震,1997,13(2):164-171. |
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| 作者姓名： | 周翠英 张宇霞 |
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| 作者单位： | [1]山东省地震局 [2]国家地震局分析预报中心 |
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| 摘 要： | 本研究旨在解决地震序列中强余震持续时间的早期估计问题。文中首先给出了强余震的震级定义，指出：主震型与强震群型序列的强作震持续时间存在差异。使用模式识别方法对主震型序列中强余震持续时间大于１天，小于１天及无强余震等３种情况进行划分之后，给出了两类序列的强余震持续时间与序列和第一震震级的粗略相关关系。
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| 关 键 词： | 余震 持续时间 模式识别 早期估计 地震群 强震 |
Early Estimation of Strong Aftershock Duration Time |
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| Zhou Cuiying\ Wang Hongwei\ Wang Mei.Early Estimation of Strong Aftershock Duration Time[J].Earthquake Research in China,1997,13(2):164-171. |
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| Authors: | Zhou Cuiying\ Wang Hongwei\ Wang Mei |
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| Abstract: | In order to solve the problem of early estimaiton of moderately strong aftershock duration time in an earthquake sequence study has been done. First, the definition of the strong aftershock has been given. It is pointed out that the strong aftershock duration time of mainshock type have difference with that of strong earthquake cluster sequence. After dividing the three cases, e.g., strong aftershock duration time larger than 1 day, smaller than 1 day and no strong aftershock occurred in main shock type sequences by pattern recognition method, we gave the rough correlation relation between strong aftershock duration time and first main shock magnitude with two types of sequences. Finally, the judge index and method of estimating strong aftershock duration time for different sequence types have been given. |
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| Keywords: | Strong aftershock Duration time Pattern recognition Early estimaiton |
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