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地震 ›› 1998, Vol. 18 ›› Issue (4): 378-382.

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1998年1月10日张北-尚义6.2级地震地下水位异常的检验性预测①

高立新, 常克贵   

  1. 中国呼和浩特 010051 内蒙古自治区地震局分析预报中心
  • 收稿日期:1998-03-17 修回日期:1998-04-21 发布日期:2022-09-23
  • 作者简介:高立新,男,1965年4月出生,工程师,1996年在职研究生,主要从事地下流体方面的地震预报工作。

THE TESTING FORECAST OF UNDERGROUND WATER LEVEL ANOMALIES BEFORE ZHANGBEI-SHANGYI Ms 6.2 EARTHQUAKE

Gao Lixin, Chang Kegui   

  1. Seismological Bureau of Inner Mongolia Autonomous Region, Hohhot 010052, China
  • Received:1998-03-17 Revised:1998-04-21 Published:2022-09-23

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摘要： 分析了距张北-尚义Ms 6.2地震震中110 km范围内,内蒙古自治区前兆台网地下水位高值异常特征。利用水化前兆标志及判定方法探讨了水位高值异常与张北-尚义地震的关系,并对其判定指标进行了统一约定.分别用异常频次累加加速判别指标值和异常频次综合变化速率值二项指标对张北-尚义Ms 6.2地震进行了中期、短期、短临尺度的检验性预测。张北-尚义6.2地震的发震时间基本符合判断结果,指出地下水位高值异常是1998年1月10日张北-尚义Ms 6.2地震的前兆反映。

关键词: 地下水位, 高值异常, 变化速率, 累加标志, 张北-尚义地震

Abstract: In this paper, the authors analized the characteristics of high value anomalies of underground water level, which detected by the Inner Mongolia precursory monitoring network within the limit of 110 km apart from the epicenter of Zhangbei-Shangyi Ms 6.2 earthquake. By using hydrochemistry precursory mark and the judgemenl method, they also studied the relation between high value anomalies of water level and Zhangbei-Shangyi Ms 6.2 earthquake. The judgement scales have been appointed. By using two scales of anomaly frequency accumulation and changing velocity rate, the Zhangbei-Shangyi Ms 6.2 earthquake is tested for the medium-and short term forecast. The occurrence time of Zhangbei-Shangyi Ms 6.2 earthquake accorded with the fundamental result of this paper and it should be pointed out that the anomalies are a precursory reflection for Zhangbei-Shangyi Ms 6.2 earthquake occurred on January 10, 1998.

Key words: Ground water level, High value anomaly, Change velocity rate, Accumulative mark, Zhangbei-Shangyi earthquake