| 辽宁省地震活动时间分布的分维特征 |
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| 引用本文： | 于龙伟,徐平.辽宁省地震活动时间分布的分维特征[J].东北地震研究,1995(1). |
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| 作者姓名： | 于龙伟 徐平 |
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| 作者单位： | 辽宁省地震局 |
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| 摘 要： | 应用分数维理论与方法，对地震活动时间分布不均匀结构，建立自相似分形集。利用其相似维数Ｄ的变化特征，来研究辽宁省中强地震前后和显著地震活动的时间结构。发现中强地震前Ｄ值随时间系统减小，余震序列的Ｄ值变大，前震序列的Ｄ值明显偏低。对震群活动的研究表明，一般震群活动的Ｄ值均较高，而前兆震群活动的Ｄ值也明显偏低。
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| 关 键 词： | 分数维，自相似，分形 |
TEMPORAL FRACTAL STRUCTURE OF SEISMICITY IN LIAONING PROVINCE |
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| Yu Longwei Xu Ping.TEMPORAL FRACTAL STRUCTURE OF SEISMICITY IN LIAONING PROVINCE[J].Seismological Research of Northeast China,1995(1). |
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| Authors: | Yu Longwei Xu Ping |
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| Abstract: | This paper studies the temporal fractal structure of seismicity by meansof the frectal theory and method. We analysed characteristics of time fractal dimension D for moderately strong earth-quake sequences in Liaoning province. The resulte shows that there is tendency for D value todecreose astime goes on before the earthquake. D value of foreshock sequence of Haichengearthquake is relative lower,and after;hock sequence has high D value. D values of premoni-tory svvarms are lower then general no-premonitory swarms. |
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| Keywords: | Fraltal dimension Self-similarity Fractal |
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