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For showing the epicentral distribution in and near China as well as all over the world, two epicentral maps for the earthquakes occurred last year are published annually in the 6-th issue each year. Figures 1 and 2 represent the epicentral distributions
For showing the epicentral distribution in and near China China, as well as all over the world, two epicentral maps for the earthquakes occurred last year have published annually in the 6-th issue each year. Figures 1 and 2 represent the epicentral distributions