我国是一个强震很多的国家。对其发震构造,已有不少同志作过研究。有许多地震震中区本来是几组构造的交汇处,但人们往往把它们归结为与一个方向的构造有关。如我国东部的北东向构造,西部的北西向构造被视为发震构造;其他方向与之交汇的构造,如东西向构造则被视为次要的。作者通过对国内外一些大震发震构造的分析,认为东西向构造具有相当 Our country is a country with a lot of strong earthquakes. For its seismogenic structure, many comrades have done research. There are many earthquakes in the epicenter of the earthquake that were originally intended to be intersections of several groups of structures, but people often attribute them to one-directional tectonics. For example, the northeast structure in the eastern part of China is considered as a seismogenic structure in the western part of the western part of the country. Structures that converge in other directions, such as the east-west structure, are regarded as secondary. Based on the analysis of the seismogenic structures of some major earthquakes both at home and abroad, the author thinks that the east-west structure has the equivalent