| 澜沧—耿马7.6级地震前中小地震活动信息熵和分维的研究 |
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| 引用本文： | 朱令人,王海涛.澜沧—耿马7.6级地震前中小地震活动信息熵和分维的研究[J].内陆地震,1990,4(4):310-318. |
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| 作者姓名： | 朱令人 王海涛 |
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| 作者单位： | 新疆维吾尔自治区地震局 乌鲁木齐
(朱令人，王海涛，白超英，周仕勇)，新疆电子计算中心 乌鲁木齐(龚宇清) |
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| 摘 要： | 从信息论原理和分形几何学的观点出发,采用多种方法,分析研究1988年澜沧—耿马7.6级地震前地震活动的信息、信息熵和分维的变化特征表明,地震前1—2年内,中、小地震活动的信息熵、缺信量和容量维、信息维出现明显的低值变化过程,反映了地震前兆的减熵、降维特点,从一个侧面反映了大震前,一定区域内中、小地震活动的时空变化从无序向有序的演化过程。
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| 关 键 词： | 澜沧－耿马 信息熵 震级 地震活动性 |
STUDY ON THE INFORMATION ENTROPY AND FRACTAL DIMENSION FOR MIDDLE AND SMALL EARTHQUAKE ACTIVITIES BEFORE LANCANG-GENGMA 7. 6 EARTHQUAKE |
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| Zhu Lingren,Wang Haitao,Bai Chaoying,Zhou Shiyong.STUDY ON THE INFORMATION ENTROPY AND FRACTAL DIMENSION FOR MIDDLE AND SMALL EARTHQUAKE ACTIVITIES BEFORE LANCANG-GENGMA 7. 6 EARTHQUAKE[J].Inland Earthquake,1990,4(4):310-318. |
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| Authors: | Zhu Lingren Wang Haitao Bai Chaoying Zhou Shiyong |
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| Abstract: | Various kinds of the methods were used to analyse the variation characteristics of seismicity information, entropy and fractal dimension occurred before Lancang-Gengma 7. 6 earthquake in 1988,based on the view of both information theory principle and fractals geometry. The result indicated that there a peared obvious variation process of low value in information entropy, information content shortening, content dimension and information dimension of middle and small earthquakes 1-2 year prior to the shock which reflected not only the features of entropy decrease and dimension reduce for earthquake precursor ,but also the evolutionary process of spacio-temporal variations from disorder to order for small earthquake activities in a certain region before large earthquakes. |
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| Keywords: | Lancang -Gengma Seismicity Fractals geometry Spacio-temporal variation Information entropy Information centent shortening Fractal dimension |
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