(一) 我国处于世界上西太平洋和喜马拉雅——地中海两大地震带之间,是一个多地震国家。地震分布广,在将近三千年间,我国历史记载了八百多次破坏性的地震。从历 (1) China is a multi-seismic country located between the two major seismic belts in the Western Pacific and Himalayan-Mediterranean regions of the world. Earthquakes are widely distributed. In nearly 3,000 years, our country has recorded more than 800 destructive earthquakes. From the calendar