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地震 ›› 2000, Vol. 20 ›› Issue (z1): 176-182.

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辽宁地区地震活动潮汐效应的综合分析

于龙伟   

  1. 辽宁省地震局 ,辽宁 沈阳 110031
  • 收稿日期:2000-04-24 修回日期:2000-05-20 出版日期:2000-09-30 发布日期:2022-09-23
  • 作者简介:于龙伟 (1944-) ,男 ,辽宁大连人 ,副研究员 ,主要从事地震预测、地震活动性、综合预报等研究。

Comprehensive analysis on tidal effect of seismicity in Liaoning Province

YU Long-wei   

  1. Seismologic Bureau of Liaoning Province, 110031, China
  • Received:2000-04-24 Revised:2000-05-20 Online:2000-09-30 Published:2022-09-23

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摘要： 对辽宁地区地震活动的固体潮效应进行了研究。结果表明, 辽宁地区 MS≥ 4. 8地震的月相效应较明显 ,在上下弦日附近发震的概率较大。另着重对辽宁地区主震前, 显著地震的地方平太阴时夹角进行了分析 ,通过多次震例说明, 当显著地震的地方平太阴时夹角连续 3次以上≤ 45° 时 ,主震即将发生。这一异常可作为短期或临震预报的依据。在对 1975年海城地震的前震序列和1999年岫岩地震序列的分析中得出 ,该方法还可用于前震序列和预报后续强余震的判定。

关键词: 固体潮, 显著地震, 前震序列, 临震预报

Abstract: The tidal effect of seismicity in Liaoning Province is analyzed. The results indicate that the occurrence of earthquakes with MS ≥ 4. 8 has obvious correlation with the Lunar phase. The probability of occurrence is bigger at first quarter and last quarter of the moon than at other days. We analyzed distribution of local mean lunar time of significant earthquakes. When the angle difference of local lunar time of significant earthquakes is continuously smaller than 45°one by one for three times, the main shock should occur very soon. Furthermore, we can identify foreshocks sequence and stronger aftershocks by using this method.

Key words: Sold tide, Significant earthquake, Foreshocks sequence, Impending earthquake prediction

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