To repeat: Some of the most striking evidences of the foregoing data are the following probable rules: First, the rapid and strong atmospheric variations, assisted to some extent by rain, are the forces most effective in the final stage of earthquake activity. Second, in a general sort of way, earthquakes occur simultaneously in the coast provinces, especially to the north of Fukien, after which there are repeated progressive movements of earthquakes towards central Asia, for a period of about 300 years, then the direction of movement is reversed; in other words, the earthquakes move in belt-like lines towards and away from the zones of high seismicity, so as to make the period of going and returning about 600 years. Third, the rate of movement of the earthquake-producing forces appears to be governed somewhat by their intensity.

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