一、前言以前的地震防灾是以建筑物的抗震性为主要研究对象的。可是,现在重视了更系统的考虑方法,将扩大到城市。然而,作为评定城市抗震性的标准,还没有像被建筑物的抗震设计采用的设计烈度那样明确的标准。因此想要使城市的抗震性定量化是非常困难的。当然,政府担负着推进城市的地震对策的责任,但届时必须经常研究与行政和居民有关的问题。因为政府切实制定出地震对策,居民作为行政体的一员,正确对待才可能大幅度地 I. Preface The previous earthquake disaster prevention was based on the earthquake resistance of buildings as the main research object. However, emphasis is now placed on more systematic considerations that will be extended to cities. However, as a measure of urban seismicity, there is no clear standard of design intensity as adopted by seismic design of buildings. Therefore, it is very difficult to quantify the earthquake resistance of the city. Of course, the government is responsible for advancing the earthquake response in the cities, but then administrative and residential issues must be regularly studied. Because the government has effectively formulated an earthquake response, as a member of the administrative body, residents can handle the earthquake drastically