| 地震前兆群体空间非均匀性指标Cv值及其应用问题探讨 |
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| 引用本文： | 王晓青.地震前兆群体空间非均匀性指标Cv值及其应用问题探讨[J].地震,2004,24(4):126-130. |
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| 作者姓名： | 王晓青 |
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| 作者单位： | 中国地震局分析预报中心,北京,100036 |
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| 基金项目： | 地震科学联合基金，103075， |
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| 摘 要： | Cv值是描述前兆分布非均匀性的一个有效指标。不同观测指标获取的震前Cv值异常证明了该方法预测地震的有效性。然而Cv值与观测指标的时间(或空间)分布形式(如周期分布、准周期分布、泊松分布、成丛分布等)并不是简单的对应关系。中在回顾Cv值研究与应用进展的基础上，对Cv值与其分布特征的关系进行了深入分析，指出了应用中存在的问题，从而加深对Cv值物理意义的理解。并给出了Cv值识别前兆群体异常的判别法则。
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| 关 键 词： | 地震前兆 非均匀性 Cv值 空间分布 地震预报 |
| 文章编号： | 1000-3274(2004)04-0126-05 |
| 修稿时间： | 2004年4月5日 |
Discussion on application of spatial inhomogeneity parameter Cv to identification of earthquake precursor group |
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| WANG Xiao-qing.Discussion on application of spatial inhomogeneity parameter Cv to identification of earthquake precursor group[J].Earthquake,2004,24(4):126-130. |
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| Authors: | WANG Xiao-qing |
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| Abstract: | The parameter C_v is available in describing the spatial inhomogeneity of earthquake precursory group. The validity of anomaly of C_v obtained from variety of observatory methods before earthquakes has been proved in a certain degree in earthquake forecast, however, the C_v value is not simply corresponding to the statistical distributions such as period, sub-period, Poisson, and clustering one et al. Based on review of research and application of C_v in the paper, further analysis is done on C_v value and its relation with the statistical distributions, especially to the problem existed in the application. The discussion is expected to be comprehensive in the physical implication of C_v . The discriminance to identify the anomaly of earthquake precursor group by using C_v is also provided in the paper. |
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| Keywords: | Earthquake precursor group Spatial inhomogeneity C_v value Spatial distribution Earthquake forecast |
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