| 怀4井地下流体异常与地震的关系 |
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| 引用本文： | 张凤秋,任佳,李海孝,张彦清,王长江. 怀4井地下流体异常与地震的关系[J]. 地震地质, 2005, 27(1): 123-130. DOI: ISSN:0253-4967.0.2005-01-00D |
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| 作者姓名： | 张凤秋 任佳 李海孝 张彦清 王长江 |
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| 作者单位： | 河北省地震局怀来地震台,怀来,075400;河北省地震局张家口地震台,张家口,075000 |
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| 摘 要： | 怀 4井为国家重点观测井,在多次地震前都有明显的异常出现,对监视北京西北地区的地震起着重要的作用。文中分析了 5次中强地震前怀 4井地下流体测项的异常情况。统计了自 1998年以来周围 300km范围内 4级以上地震前怀 4井流体测项的映震情况。认为怀 4井对其周围 260km范围内≥4 0级的地震反应比较灵敏。并归纳出怀 4井流体测项前兆异常的如下特征: 1)水汞前兆异常形态为突跳型,异常结束后发震; 2)断层气二氧化碳前兆异常形态为多点高值起伏型,异常转折下降中发震; 3)水氡前兆异常形态为阶变型,异常中发震; 4)氢气前兆异常形态为突跳型,异常结束后发震。通过本研究,有助于今后对怀 4井流体异常的识别,根据怀 4井各测项对地震孕育各阶段反映的差异,更容易判定未来地震的发震时刻
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| 关 键 词： | 地震预报 地下流体 前兆异常 |
| 文章编号： | 0253-4967(2005)01-0123-08 |
| 修稿时间： | 2003-12-12 |
RELATIONSHIP BETWEEN THE ANOMALIES OF UNDERGROUND FLUID IN THE HUAILAI NO.4 WELL AND EARTHQUAKE |
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| ZHANG Feng-qiu,Ren Jia,LI Hai-xiao,ZHANG Yan-qing,WANG Chang-jiang. RELATIONSHIP BETWEEN THE ANOMALIES OF UNDERGROUND FLUID IN THE HUAILAI NO.4 WELL AND EARTHQUAKE[J]. Seismology and Geology, 2005, 27(1): 123-130. DOI: ISSN:0253-4967.0.2005-01-00D |
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| Authors: | ZHANG Feng-qiu Ren Jia LI Hai-xiao ZHANG Yan-qing WANG Chang-jiang |
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| Abstract: | The Huailai No.4 well is one of the national key observation wells. Obvious anomalies have been observed in this well before the occurrence of many earthquakes. Therefore, the well has played an important role in the monitoring of earthquake activity in Northwest Beijing region. This paper describes in detail the anomalies of underground fluid in the well before the occurrences of 5 moderate-strong earthquakes. In addition, we have also collected the earthquake-reflecting anomalies of the underground fluid |
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| Keywords: | earthquake prediction underground fluids precursory anomalies |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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