【摘要】 2018版《美国地震危险性图》对地震动模型美国中部和东部地区地震动场地效应模型及西部地区沉积盆地放大等进行了更新，改善了对美国各地地震灾害的描述，并增强了对美国中部、东部地区与西部地区地震动差异的理解。本文分析并论述了2018版《美国地震危险性图》中美国中部和东部地区地震动场地效应模型及西部地区沉积盆地效应模型的主要特征，对我国新一代地震动区划图的编制、修订进行了思考。更多还原

【Abstract】 The 2018 US National Seismic Hazard Model has updated the site effect models of ground motion in the central and eastern United States, and the amplification effect of sedimentary basins in the western United States, improving the description of seismic disasters across the United States and the understanding of ground motion differences between the central and eastern United States and the western United States regions. In this paper, the main characteristics of the site effect models of ground motion in the central and eastern United States and the sedimentary basin effect model in the western United States are analyzed and discussed, which triggers the deliberation of seismic zonation map of next generation in China.更多还原