关于1999年岫岩偏岭5.6级地震前震群序列性质的研究

利用经验类比的方法，对１９９９年１１月２９日岫岩偏岭５．６级地震前群序列及以往在辽宁地区发生的典型具有预报意义的１９８８年２月２５日彰武４．８级地震前岫岩偏岭兆震群和１９７５年２月４日海城７．３级地震前序列进行了详细研究。结果显示，１９９９年１１月２９日岫岩偏岭５．６级地震前震群序列与１９７５年２月４日海城７．３级地震前震序列的统计特征及性质相同，因此，认为该序列属于前震序列。同时， 将序列的表象

STUDY ON CHARACTERISTICS OF EARTHQUAKE SWARM SEQUENCE PRIOR TO XIUYAN-HAICHENG Ms 5.6 EARTHQUAKE,1999

By using of the method of experience analogy,we have deeply studied some earthquake swarm sequences with typical forecasting signifience occurred in Liaoning province .The result shows that the quality and statistical characters of earthquake swarm sequence prior to the Ms5.6 earthquake occurred in Pianling, Xiuyan county in 1999 is similar to that of the foreshock sequences prior to the Ms 7.3 earthquake occurred in Haicheng in 1975. They both belong to the foreshock sequence. Meanwhile, the result has also proposed a method to judge the sequence quality to combine external characters of sequence with parameters characters of sequence.