Q: You mean the earthquakeswarm near Dujiangyan [a town near the epicenter badly damaged in the quake] in February 2008?
问：你指的是2008年二月发生在都江堰(一个离震中很近在地震中严重损毁的小镇)附近的地震群吗？
2
By analyzing the early phase of frequency decay, it is possible to identify multi-shock earthquake sequence, but it is difficult to rapidly judge intermittent double-shock and swarm.
分析地震序列前期的时频度衰减曲线有可能区分出多震型地震，但快速区分间歇双震型和震群型地震较为困难。
3
Signal shock and precursory earthquakeswarm and foreshock activities always accompany the anomalous space-time patterns of seismic 'ty.