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地震 ›› 2003, Vol. 23 ›› Issue (2): 94-98.

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弱震条带对2001年首都圈地区中等地震活动的指示意义*

兰从欣, 王春媛, 岳辉   

  1. 北京市地震局,北京 100080
  • 收稿日期:2002-05-08 修回日期:2002-09-20 出版日期:2003-04-30 发布日期:2021-12-21
  • 作者简介:兰从欣(1971-),女,河北无极人、副研究员,主要从事地震预报及地震机理研究。
  • 基金资助:
    北京市自然科学基金项目(8022009)

Smal I earthquake band suggested the moderate earthquake occurrence in Capital Circle Region in 2001

LAN Cong-xin, WANG Chun-yuan, YUE Hui   

  1. Seismological Bureau of Beijing Municipality, Beijing 100080, China
  • Received:2002-05-08 Revised:2002-09-20 Online:2003-04-30 Published:2021-12-21

PDF (PC)

151

摘要： 比较系统分析总结了2001年首都圈及邻近地区中等地震发生前小震活动特征及所形成的弱震条带,6次中等地震前均出现了弱震活动有序分布现象,由2~3级地震组成的弱震条带后发生中等地震的可能性更大,但条带长度和持续时间与地震震级关系不甚明显,这些规律特点可为日常短临跟踪及分析预报提供借鉴资料。

关键词: 弱震条带, 中等地震, 首都圈地区

Abstract: In this paper, the small earthquake activity and its bands occurred in the Capital Circle Region in 2001 were studied. There was the ordered distribution of weak seismicity before 6 moderate earthquakes. After the band of the M12. O~ 3. 0 small earthquakes formed, the probability of occurrence of moderate earthquakes was bigger. But the band length and lasting time has not shown more relationship with the earthquake magnitude. All the features could provide some references to routine analysis and prediction.

Key words: Small earthquake band, Moderate earthquake, Capital Circle Region

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