The objectives of this paper are to summarize the research activities of Research Center for Disaster Reduction Systems, DPRI. They are systematically organized by not only our staff members but also many researchers and practitioners who do voluntary work in some workshops and symposia. Open symposia were held monthly with large audience. The 20th Seminar for Regional Disaster Prevention Plan was held focusing on the progress of disaster management information systems. The 15th Workshop on Comparative Disaster Studies was held to discuss the two big research projects on national catastrophe and urban resilience. We are also upgrading and expanding the database SAIGAI and historical disaster database.