MAYUMI SAKAMOTO

Ballistic volcanic blocks, one of the triggers of volcanic disasters, cause serious human and physical damage depending on where they fall. The latest case was the fall of the ballistic volcanic blocks near the residential area at Sakurajima volcano found on June 8, 2020. After that, a questionnaire survey of the volcanic information was conducted among residents living in Sakurajima. It clarifies the degree of awareness of changes in the volcanic alert level and the range that requires caution depending of the flying distance of ballistic volcanic blocks. As a result, it was found that although it is well recognized that the volcanic alert level is raised by the ballistic volcanic blocks, the degree of recognition of the distance from the crater to the falling point is low. It was found that 80% of the respondents answered that they knew the Sakurajima volcanic hazard map. Although the hazard map shows the evacuation sites, 30% of the respondents knew the site accurately.

In this study, we conducted a case study (hearing survey, literature survey, etc.) on a public-private partnership system in a disaster in Minamiawaji City, Hyogo Prefecture, which is one of the municipalities assumed to be affected by the Nankai Trough Earthquake, in order to obtain knowledge contributing to the enhancement of the effectiveness of public-private partnership in a disaster. As a result, this paper presents the present state and history of the public-private cooperation system in the city at the time of disaster, the problems of its effectiveness, and a part of its countermeasures.Currently, only one local government and its limited partners are shown, and more comprehensive analysis is required in the future.