本文介绍在日本东京大学生产技术研究所FACOM-M380计算机上建立的地震危险性分析图形系统ERA。系统中包含中国的历史地震目录、活断层分布和地图数据等三个基本数据文件。可以依据历史地震资料对中国任何地点进行地震危险性分析,并在图形输出设备上给出一整套有关震级、烈度和最大加速度等参数的危险性分析结果的图形资料。 This article describes the seismic hazard analysis and mapping system ERA established on the FACOM-M380 computer at the Institute of Production Technology, University of Tokyo, Japan. The system contains three basic data files of China’s historical earthquake catalog, active fault distribution and map data. Based on historical seismic data, seismic hazard analysis can be carried out on any place in China and a set of graphical data on the risk analysis results of parameters such as magnitude, intensity and maximum acceleration is provided on the graphical output device.