【摘要】 本文得1982年-1984年中国台网测定面波均匀震级及国外报告报出的震级资料.计算了国际某些主要测报系统的震级与均匀震级的年平均偏差及其标准误差、分析其计算结果.绘制出直方图和分布曲线,并准备交其结果用类似"授时公报"的形式发布每年的"震级对比公报".以研究其偏差分布特征及比较其逐年的稳定性.另外,利用X~2检验方法检验震级编差的总体是否遵从正态分布?并计算出平均在20个以上的震级偏差数据即可达到95%的置信度.说明震级偏差的频数分布,很接近于正态分布更多还原

【Abstract】 In thispaper, the homogeneous surface-wave magnitude MCH data in 1982-1984 yeas given by chinese seismographic stations and magnitude data reported seismological bulletins we compute the annual average deviation of the latter from the formor and tis standard error. According to the results of computation we draw histogram and the magnitude deviation distripution curve, we are prepared to compile these results somewhat similar to " Time Service Bulletin " form published by the astronomical observatory every year, and to entitle it as Comparison Bulletin OF Earthouake Magnitude. Using it we can study distribution characteristics of the magnitude deviation and compare with its stability in every years, we use the x~2 examination method to test all magnitude deviation. The result shows that frequency distribution of the deviation is very close to the normal distribution.更多还原