| 周至井水位气压效率和相关系数在中强地震前的变化特征 |
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| 引用本文： | 王新,赵小茂,张国强,杨旭升. 周至井水位气压效率和相关系数在中强地震前的变化特征[J]. 华南地震, 2007, 27(4): 61-66 |
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| 作者姓名： | 王新 赵小茂 张国强 杨旭升 |
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| 作者单位： | 陕西省地震局,陕西,西安,710068;长安大学地球科学与国土资源学院,陕西,西安,710054 |
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| 摘 要： | 计算了2002～2004年周至井水位的气压效率和相关系数,初步分析了其与地震的关系,认为在2002年甘肃玉门5.9级地震、2003年和2004年甘肃岷县5.2、5.0级地震前,该井水位的气压效率和相关系数同时出现了明显的短临前兆异常。
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| 关 键 词： | 周至井 水位 气压效率 相关系数 中强地震 |
| 文章编号： | 1001-8662（2007）04-0061-06 |
| 收稿时间： | 2007-04-24 |
| 修稿时间： | 2007-04-24 |
The Variational Characteristics of Barometric Efficiency and Correlation Coefficients of Groundwater Level in Zhouzhi Well before Moderate-strong Earthquakes |
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| WANG Xin,ZHAO Xiaomao,ZHANG Guoqiang,YANG Xusheng. The Variational Characteristics of Barometric Efficiency and Correlation Coefficients of Groundwater Level in Zhouzhi Well before Moderate-strong Earthquakes[J]. South China Journal of Seismology, 2007, 27(4): 61-66 |
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| Authors: | WANG Xin ZHAO Xiaomao ZHANG Guoqiang YANG Xusheng |
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| Abstract: | In the paper,the barometric efficiency and correlation coefficients of groundwater level from 2002 to 2004 in Zhouzhi well have been calculated,and their relation to earthquake is also analyzed.It is found that the mentioned coefficients show obviously short-term precursor anomaly before the Yumen M5.9 earthquake in 2002,the M5.2(2003) and M5.3(2004) earthquakes in Minxian,Gansu. |
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| Keywords: | Zhouzhi well groundwater level barometric efficiency correlation coefficient moderate-strong earthquake |
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