| 强震前水氡异常台站时空分布非均匀性变化特征 |
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| 引用本文： | 陈学忠,王晓青,李志雄.强震前水氡异常台站时空分布非均匀性变化特征[J].地震,2000,20(1):39-44. |
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| 作者姓名： | 陈学忠 王晓青 李志雄 |
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| 作者单位： | 1. 中国地震局分析预报中心,北京,100036
2. 中国地震局,北京,100036 |
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| 基金项目： | 地震科学联合基金!9507435 |
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| 摘 要： | 研究了华北地区６级左右强震前水氡观测值异常的时空非均匀分布变化特征。结果表明，在强震前水氡观测异常台站的空间分布非均匀性发生显变化，Ｃｖ值明显的和蔼同过程。这说明，强震前短临地震前兆异常空间分布的非均匀性增强，变得更加不均匀，这可能邮地壳应力场的增强过程。
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| 关 键 词： | 水氡 非均匀性 强震 华北地区 地震前兆 |
| 文章编号： | 1000-3274（2000）01-0039-06 |
| 修稿时间： | 1999-04-06 |
The characteristics of variation in inhomogeneity of temporal-spatial distribution of radon anomaly before strong earthuakes |
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| CHEN Xue-zhong,WANG Xiao-qing,LI Zhi-xiong.The characteristics of variation in inhomogeneity of temporal-spatial distribution of radon anomaly before strong earthuakes[J].Earthquake,2000,20(1):39-44. |
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| Authors: | CHEN Xue-zhong WANG Xiao-qing LI Zhi-xiong |
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| Abstract: | The characteristics of variation in inhomogeneity of temporal-spatial distribution of stations with Radon anomaly observed before strong earthquakes with magnitude of about 6 occurred in North China are Investigated. To describe the inhomogeneity of tem- poral-spatial distribution of observational station, showing Radon anomaly, Cv value is employed. The results show that the Cv value distribution of short-term and imminent pre- cursors increases and becomes more inhomogeneous before the strong earthquakes, which could reflect the enhancement of the crustal stresses. |
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| Keywords: | Radon Inhomogeneity Strong earthquake North China |
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