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地震 ›› 2000, Vol. 20 ›› Issue (z1): 119-125.

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大陆地下流体对台湾南投 7. 6级地震的响应研究

黄辅琼1, 迟恭财2, 徐桂明3, 简春林1, 邓志辉4   

  1. 1.中国地震局分析预报中心, 北京 100036;
    2.辽宁省地震局 ,辽宁 沈阳 1100313;
    3.江苏省地震局 ,江苏 南京 210014;
    4.中国地震局地质研究所, 北京 100029
  • 收稿日期:2000-05-31 修回日期:2000-06-14 出版日期:2000-09-30 发布日期:2022-09-23
  • 作者简介:黄辅琼 (1967-) ,女 ,重庆市人,副研究员, 1993年获硕士学位 ,主要从事地震预报研究。
  • 基金资助:
    国家重大基础理论项目 973项目 (95130503)

Research on the response anomalies of subsurface f luid in mainland monitoring network to the Nantou earthquake with MS 7. 6

HUANG Fu-qiong1, CHI Gong-cai2, XU Gui-ming3, JIAN Chun-lin1, DENG Zhi-hui4   

  1. 1. Center for Analysis and Prediction, CSB, Beijing 100036, China;
    2. Seismological Bureau of Liaoning Province, Shenyang 110031, China;
    3. Seismological Bureau of Jiangsu Province,Nanjing 210014, China;
    4. Institute of Geophysics, CSB, Beijing 100029, China
  • Received:2000-05-31 Revised:2000-06-14 Online:2000-09-30 Published:2022-09-23

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摘要： 将大陆地震地下流体观测在台湾南投 7. 6级地震发生前后 5天内出现的显著异常变化命名为响应异常。统计分析了异常的变化过程及其空间分布特点, 结果是: 出现异常的测项多 ,除水位以外 ,还有水 (气)氡、水温等; 异常总体空间分布广 ,但局部相对集中; 异常形态统一, 除了水位有水震波变化以外 ,其余以上升阶变异常为主 ; 异常幅度大 ,容易识别; 异常出现时间集中在 9 月 21~ 26日 ,但持续时间相对较长。初步研究认为这种响应异常的空间丛集区, 对未来地震危险区具有短期至中短期指示性意义。

关键词: 台湾南投 7. 6地震, 响应异常, 地下流体, 地震危险区

Abstract: The anomalies occurred 5 days before and after Nantou 7. 6 earthquake are named as response anomalies. The study on the response a noma lies shows that: 1. There are m any measures including groundwater level, temperature and radon etc. occurred anomalies. 2. The answering anomalies are widely distributed in the eastern China. 3. Most forms of the anomalies are of large amplitude and easily distinguished. 4. The anomalies mainly occurred in 21-26 Sept. and lasted a long period. It was thought that the seismic risk area might be the area w here the anomalies clustered. And this implied that the event might occur in short -term or medium-short -term period.

Key words: Nantou earthquake with MS 7. 6, Response anomaly, Subsurface fluid, Seismic risk area

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