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地震 ›› 2000, Vol. 20 ›› Issue (4): 63-68.

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辽宁地区震群序列性质的研究

孙文福, 王玉莹, 李芳   

  1. 辽宁省地震局, 辽宁 沈阳 110031
  • 收稿日期:2000-01-20 修回日期:2000-04-03 出版日期:2000-10-31 发布日期:2022-09-22
  • 作者简介:孙文福 (1951-),男,辽宁彰武人,副研究员,主要从事地震预报和地震活性研究。

Study on nature of earthquake swarm sequences in Liaoning region

SUN Wen-fu, WANG Yu-Ying, LI Fang   

  1. Seismological Bureau of Liaoning Province, Shenyang 110031, China
  • Received:2000-01-20 Revised:2000-04-03 Online:2000-10-31 Published:2022-09-22

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摘要： 利用经验类比的方法, 对 1999年 11月岫岩偏岭震群序列及以往在辽宁地区发生一些典型的具有地震预报意义的前兆震群和前震序列进行了详细研究。 结果显示, 前兆震群与前震序列之间差别很大, 其性质和前兆特征迥然不同。 1999年 11月岫岩 5. 6级地震震前序列与 1975 年海城 7. 3级地震前震序列特征及性质相同, 属于前震序列。 同时, 研究结果中也包含了判别地震序列性质的方法和须要注意的问题。

关键词: 前兆震群, 前震序列, 地震序列性质, 前兆特征

Abstract: To make use of methods of the statistical feature and the analog y prediction, some earthquake swarm s and foreshock sequences with typical prediction sense occurred in Liaoning in the past are studied in detail. The results show that there are a lot of obvious differences between foreshock sequence and precursory earthquake swarms. Their nature and precursory characteristics are distinct. The nature and precursory characteristics of pre-seismic sequence of M S 5. 6 earthquake occurred in Xiuyan-Haicheng in 1999 are similar to that of foreshock sequence of MS 7. 3 earthquake occurred at Haicheng in 1975, both of them belong to foreshock sequence. Meanwhile, the research results also include the methods for judging of earthquake sequences and the problems necessary to pay attention.

Key words: Precursory earthquake swarm, Foreshock sequence, Nature of earthquake sequence, Precursory characteristics

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