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The structure of earthquake series on the Chinese mainland and in the main seismic provinces has a very good rhythm of nature. Strong earthquakes take 8 times of passing hrough the mid-strong earthquake as a section and occur on section points in this way (or multiple 8). The rhythmic activities of strong earthquakes indifferent provinces are both similar and independent, and are not related to the time of occurrence. These phenomena indicate that the earthquake activities are a regular behaviour of self-organization with self-rhythm. 相似文献
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