摘要
本文在以往研究辽宁地区震群序列性质的基础上,结合该区曾发生的具有明确预报意义的前兆震群和前震序列等典型的震群活动特点,利用"八五"和"九五"地震预报攻关以来较新的地震学分析预报方法,对2002年4月30日营口—海城震群的性质进行了详细研究。通过其统计特征和自然类比以及定量识别等综合分析,认为该震群属于非前兆震群,无前兆意义。同时,对如何正确识别震群性质的方法及其存在的问题也进行了有意义的讨论。
Based on to previously study the natures of earthquake swarm sequences occurred in Liaoning, and to combine the seismicity features of typical earthquake swarms (eg foreshock sequences and precursory earthquake swarms with definite prediction sense) to once occur in this region, to make use of seismological prediction methods in the scientific research achievements since 'the 8th Five-Year Plan'and 'the 9th Five-Year Plan', the nature of earthquake swarm occurred in Yingkou-Haicheng region on April 30, 2002 is studied in detail Finally, according to the synthetic analysis result of its statistic features and natural analogy as well as quantitative judge etc, this earthquake swarm belong in non precursory event Meanwhile, the methods about how to correctly judge earthquake swarm nature and its existing problems are significantly discussed also
出处
《东北地震研究》
2002年第4期16-22,共7页
Seismological Research of Northeast China
