| 水库诱发地震预测方法研究 |
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| 引用本文： | 孙君秀.水库诱发地震预测方法研究[J].地震地质,1996,18(4):421-426. |
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| 作者姓名： | 孙君秀 |
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| 作者单位： | 国家地震局地质研究所 |
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| 基金项目： | 长江三峡工程地壳稳定性与水库诱发地震问题的深化研究项目,国家自然科学基金 |
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| 摘 要： | 利用模糊聚类分析和灰色聚类分析提出了预测水库诱发地震上限震级的方法，并以新丰江水库地震为例进行了讨论。研究表明，预测的上限震级与实际发震情况相符
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| 关 键 词： | 模糊聚类分析 灰色聚类 诱发地震 |
A STUDY OF PREDICTION METHOD FOR RESERVOIR INDUCED EARTHQUAKES |
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| Sun Junxiu.A STUDY OF PREDICTION METHOD FOR RESERVOIR INDUCED EARTHQUAKES[J].Seismology and Geology,1996,18(4):421-426. |
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| Authors: | Sun Junxiu |
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| Abstract: | A method of predicting the upper-limit of the potential magnitude of reservoir induced earthquakes is proposed by using fuzzy cluster and grey cluster analyses.The applicability of the method has been discussed by taking Xinfengjiang reservoir area as an example.Fuzzy cluster analysis:A fuzzy subset should be set up at first.The fuzzy subset is defined by the function μ=A (u),where μ is called the subordination function of A.If its image is to be demonstrated,the threshold value λ which is between 0 and 1 must be chosen.If A (u)≥λ,then it is the case of u∈A or otherwise uA.In fuzzy cluster analyses, if Rλ is in fuzzy equivalence relation to U,then Rλ is in common equivalence relation to U for any 0≤λ≤1.According to this equivalence relation,the elements in U can be classified.When λ declines from 1 to 0, the classifications change from detailed to sketch,and then merge gradually,forming a dynamic image of cluster.In grey cluster analysis,prediction is made by using the grey target of |
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| Keywords: | Fuzzy cluster analysis Grey cluster Induced earthquake |
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