In the 1923 Great Kanto Earthquake, large areas of Tokyo were destroyed by fire. Records of the earthquake -fires remain, but the dynamics of fire spread have not yet been sufficiently analyzed using today’s information processing technology. Furthermore, it has not been verified whether today’s fire spread simulation methods are effective in great earthquake-related fires. In future urban disaster prevention research, it is essential to understand the urban situation at the time of the Great Kanto Earthquake. In this paper, I summarize the characteristics of Tokyo’s urban areas before the earthquake and consider the direction of urban area data construction.
