| 怀来2井水氡前兆异常特征分析 |
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| 引用本文： | 张凤秋.怀来2井水氡前兆异常特征分析[J].华北地震科学,2001,19(1):64-66. |
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| 作者姓名： | 张凤秋 |
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| 作者单位： | 河北省地震局怀来地震台, |
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| 摘 要： | 首先介绍了1998年张北6．2级地震前怀来2井水氡的异常变化，又根据水氡异常与京西地区几次中强震的对应情况，归纳出怀来2井的水氡前兆异常特征；形态为下降一上升型，异常对应范围120－160km；异常出现后28－55d发震等。
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| 关 键 词： | 水氡异常 地震前兆 张兆地震 发震时间 震级 |
| 文章编号： | 1003-1375(2001)01-0064-03 |
| 修稿时间： | 2000年8月1日 |
ANALYSIS TO THE CHARACTERS OF WATER RADON'S PRECURSORY ANOMALIES IN HUAILAI NO.2 WELL |
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| Zhang Fengqiu.ANALYSIS TO THE CHARACTERS OF WATER RADON''S PRECURSORY ANOMALIES IN HUAILAI NO.2 WELL[J].North China Earthquake Sciences,2001,19(1):64-66. |
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| Authors: | Zhang Fengqiu |
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| Abstract: | The variation of water radon anomalies before Zhangbei Ms6.2 earthquake(1998)has been introduced.Based on the correspondence of water radon anomalies with the medium and large earthquake in the northwest region of Beijing,the character of water radon precursory anomalies in Huailai No.2 well has been summarized.The anomalies'shape character is from decreasing to increasing.The anomalies'functioning range is about 120～160km.Earthquakes usually occur within 28～55 days when the anomaly appear. |
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| Keywords: | water radon anomalies earthquake precursors Huailai No 2 well |
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