摘要
讨论了四种不同方法测量的Lg振幅,以及选取不同的几何衰减系数ζ值(=5/6或1),对计算Lg波γ值的影响. 重新测定的中国东六省地区γ=0.0034±0.0001km^(-1)(当ζ=5/6),由此修订的m_(Lg)/(mxh)震级校准函数q_E(△)=5/6lg△+0.00147△+1.81.
The influence of the four different methods of measuring Lg amplitude, and of the selection of different geometrical attenuation coefficient ζ-values ( = 5/6 or 1) on the determined γ-value of Lg wave anelastic attenuation coefficient are discussed.The value γ= 0.0034 + 0.001km-1 for the six eastern provinces of China is re-dtermined. The revised magnitude calibration function of mLg(mxh) is deduced.
出处
《地震学报》
CSCD
北大核心
1991年第2期171-178,共8页
Acta Seismologica Sinica
基金
地震科学联合基金会
