【摘要】 本文提出了根据所研究地区地质构造特点划分小区求小震平均节面解的方法,并以晋、冀、蒙三省交界地区为例,得到107个小震平均节面解.分析了它们在唐山大震前后参数变化的时空特征,取得了一些有意义的结果.更多还原

【Abstract】 A method is proposed in this paper for the analysis of temporal and spatial characteristics of composite fault plane solutions for small earthquakes. With this method, an interesting region is divided into small areas according to the geological features of the region. As an example, 107 composite fault plane solutions are calculated for the adjoining region of Shanxi, Hebei and Nei Monggol- The temporal and spatial characteristics of the variations of the solution parameters before and after the great Tangshan earthquake of July 28, 1976, have been analysed and some interesting results obtained.更多还原