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本文对中国大陆内部不同时段发生的七级地震和六级地震分别进行统计分析,求得不同震级的优势地震间距,减震距离以及地震间距随时间变化的关系式。提出地震间距的数值分布可用正态概率分布函数描述,并得到含有时间参量的地震间距概率密度函数。此外,根据弹性位错理论,求得一次地震后在减震距离处所产生的位移,进而求出平均位移速率。
In this paper, we statistically analyze the magnitude 7 and magnitude 6 earthquakes occurring at different time intervals in mainland China, and get the relationship between the dominant seismic distances, damping distances and seismic spacing with time for different magnitudes. It is suggested that the numerical distribution of seismic spacing can be described by normal probability distribution function, and the probability density function of seismic interval with time parameter can be obtained. In addition, according to the theory of elastic dislocation, the displacement generated at the damping distance after an earthquake is calculated, and the average displacement velocity is obtained.