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地震 ›› 2007, Vol. 27 ›› Issue (3): 111-116.

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强地震前重现的地下水异常及其预报意义

曹新来, 许向科, 孙佩卿, 冯向东   

  1. 河北省地震局, 河北 石家庄 050021
  • 收稿日期:2007-01-01 修回日期:2007-03-05 出版日期:2007-07-31 发布日期:2021-10-29
  • 作者简介:曹新来(1948-), 男, 河北正定人, 高级工程师, 主要从事地震地下流体预报等研究。
  • 基金资助:
    “十一五”国家科技支撑计划(2006 BAC01B03-04-03)。

Recurrent groundwater anomaly before strong earthquakes and its significance in earthquake prediction

CAO Xin-lai, XU Xiang-ke, SUN Pei-qing   

  1. Earthquake Administration of Hebei Province, Shijiazhuang 050021, China
  • Received:2007-01-01 Revised:2007-03-05 Online:2007-07-31 Published:2021-10-29

PDF (PC)

136

摘要： 通过多个震例研究认为, 不同的井在几次强地震前记录了形态相同的水位下降过程, 数量虽然不多, 却表明地下水地震前兆异常的变化形态在短期到临震阶段具有重复出现的特征。 这类异常出现转折后距地震发生时间一般较稳定, 通常在20天左右或更短, 是预报地震发生时间的重要指标。 因此, 研究此类异常的基本特征及其在分析预报中的应用就显得极为重要。

关键词: 强地震, 地下水, 异常形态 , 短期到临震阶段

Abstract: Through the study of several earthquake cases, it can be held that the same decreases of groundwater levels in different wells, though not many, were recorded before several strong earthquakes. These decreases indicate that the groundwater anomaly before earthquakes has the character of recurrence especially in the period from short-term to imminent earthquake occurrence. The time of earthquake occurrence, usually about 20 days or shorter after these anomaly become break, is relatively steady, so it can be regarded as the important time index for prediction of earthquake occurrence. Therefore, it appears extremely important to study the basic characteristics and the usage of the anomaly in earthquake analysis and prediction.

Key words: Strong earthquake, Groundwater, Groundwater anomaly, Period from short-term to imminent earthquake occurrence

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