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本文通过中国大陆地震(M≥6.0)震中与其发震断层的距离的统计与分析,认为该距离的分布基本上符合正态分布特征,并经拟合计算得到中国东部和西部地区不同类型断层上不同震级档的地震震中距离分布的期望值和方差。根据正态分布随机变量的区间估计方法,讨论了统计分析的结果在潜在震源区边界的确定、以及边界的不确定性评价中的应用。
Based on the statistics and analysis of the distance between the seismogenic fault and its seismogenic fault in the Chinese mainland (M≥6.0), the distribution of this distance is basically in accordance with the normal distribution and calculated by fitting to different types of faults in eastern and western China Expectations and Variances of Seismic Epicentral Distance Distributions for Different Magnitudes. According to the method of interval estimation of random variables with normal distribution, the results of statistical analysis on the determination of potential source boundary and the application of boundary uncertainty evaluation are discussed.