【摘要】 本文考虑介质环境表现品质因子，根据美国西部强地震动记录确定了地震动衰减模型中的参数，在不考虑震源机制细节差异的条件下，分析比较了八个地区由于表观品质因子Ｑ值不同导致的地震动加速度傅里叶幅值谱和均方根强度衰减关系的差异。更多还原

【Abstract】 Taking account of the quality factor of region medium, the attenuation relation ofearthquake motion parameters is analyzed and calculated by the use of ground motion recordof the West of America. At the same time, Fourier amplitude spectrum and mean squareroot intensity of ground motion acceleration are compared for eight regions due to differentquality factors Q.更多还原