| 地震前兆模糊分维特征的研究 |
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| 引用本文： | 郑熙铭,冯德益.地震前兆模糊分维特征的研究[J].西北地震学报,1992,14(3):13-20,70. |
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| 作者姓名： | 郑熙铭 冯德益 |
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| 作者单位： | 天津市地震局,天津市地震局 |
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| 基金项目： | 地震科学联合基金会资助 |
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| 摘 要： | 本文利用模糊分维公式计算了大同6.1级和5.8级地震前震中及附近地区前兆观测资料的模糊维数。结果表明,震前前兆观测资料的模糊维数明显下降,且震中位于降维最大的地区附近。唐山7.8级地震前,短水准观测资料也有类似的情况。
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| 关 键 词： | 地震 地震前兆 模糊数学 分维特征 |
| 收稿时间： | 1992/2/11 0:00:00 |
A STUDY ON THE CHARACTERISTICS OF FUZZY FRACTAL DIMENSION OF EARTHQUAKE PRECURSORS |
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| Zheng Ximing and Feng Deyi.A STUDY ON THE CHARACTERISTICS OF FUZZY FRACTAL DIMENSION OF EARTHQUAKE PRECURSORS[J].Northwestern Seismological Journal,1992,14(3):13-20,70. |
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| Authors: | Zheng Ximing and Feng Deyi |
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| Institution: | Seismological Bureau of Tianjin, China and Seismological Bureau of Tianjin, China |
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| Abstract: | By using the formula of fuzzy fractal dimenion, the values of fuzzy, fractal dimension of the observational data of precursors in epicentral region and its vicinity before the M 6.1 and M 5.8 Datong earthquakes have been calculated and analysed. The results obtained show that there exist obvious decreases of fuzzy fractal dimension before the earthquakes, and the epicenters were located in the vicinity of the region where the decreases of fuzzy fraetal dimension were most strong. The similar phenomena were obtained in the short-base leveling data before the Tangshan M 7.8 earth quake. |
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