【摘要】 本文分析了1976年春季山东庙岛群岛的两次小震群的活动特征,给出了部分小震震源参数、波速比、(?),(?)波振幅比和震源机制解结果,并进行了初步分析.最后对这两次小震群与海城7.3级地震前震序列的同异点进行了对比讨论.更多还原

【Abstract】 In this paper the characteristics of two small earthquake swarms at Miaodao Archipelago, Shandong in Spring 1976, have been analysed. Earthquake source parameters, of a part of both swarms, velocity ratio, amplitude ratio of P,S waves and focal mechanism solutions are given. Finally, these two small earthquake swarms are compared with the foreshock sequence of the 1975 M = 7.3 Haicheng earthquake for their difference and similarity.更多还原