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地震 ›› 1999, Vol. 19 ›› Issue (1): 54-58.

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地震非均匀度方法在华北地区中强地震中期预报中的应用

刘桂萍   

  1. 中国北京 100036 中国地震局分析预报中心
  • 收稿日期:1998-06-17 修回日期:1998-07-01 出版日期:1999-01-31 发布日期:2022-09-19
  • 作者简介:刘桂萍.女,1966年3月出生,助理研究员,1997年在读博士生,主要从事地震预报及预报方法等研究工作。
  • 基金资助:
    中国地震局“九五”科研攻关项目(95040601)

APPLICATION OF THE SEISMIC INHOMOGENEOUS DEGREE TO THE MID-TERM PREDICTION BEFORE MODERATELY STRONG EARTHQUAKES IN NORTH CHINA REGION

Liu Guiping   

  1. Center for Analysis and Prediction, CSB, Beijing 100036, China
  • Received:1998-06-17 Revised:1998-07-01 Online:1999-01-31 Published:2022-09-19

摘要: 根据1997年10月初全国范围内地震非均匀度C GL 值)方法的空间和时间扫描结果,在内蒙古中部和华北北部地区出现的明显高值异常,提出这2个地区未来1年存在发生5~6 级 地震的可能。此后在1997年10月18日和1998年1月10日在上述2个异常区域分别发生了内蒙古临河Ms 5. O和河北省张北→尚义Ms 6. 2地震。通过对这2次地震前 GL 值的变化过程进行 分析总结,初步提出了中强地震前 GL 值的变化特征。

关键词: GL 值方法, 中强地震, 变化特征

Abstract: In early October 1997, based on the obviously high value anomalies in the middle part of Inner Mongolia and the northern part of North China in the result of spatial and time scanning of the seismic inhomogeneous degree (the CL value method) all over China, it was proposed that there might happen an earthquake with M = 5~6 respectively in each region in the com­ing year. Since then, an Ms 5. 0 earthquake and an Ms 6. 2 earthquake happened in these two regions respectively. In this paper, the change processes of the CL values before the two events are discussed and the change features of the CL values before moderately strong earthquakes are concluded preliminarily to apply this method to the prediction of moderately strong earth­quakes more broadly in the future.

Key words: CL value method, Moderately strong earthquake, Change feature