【摘要】 通过对青海省区域地震活动序列的分析，发现一定强度的地震活动序列存在着内在的、有序可数的“自然节律”。并从逾渗模型的角度对这一现象做了初步解释。认为：中强地震的自然节律可能在一定程度上体现了非平衡条件下地震活动的抗混性。更多还原

【Abstract】 Based on the analysis of the temporal structure of regional seismicity in Qinghai Province, we have found that the large earthquakes (Ms≥5. 5 ) are occurred with the rhythm in time which is the number of earthquake events and are orderly in spatial structure. To a certain extent, the natural rhythm of regional seismicity shows the "antichoas" of seismicity at nonbalanced conditions. In this paper, a preliminary explanation was made by using percolation model.更多还原