Considerations in Making Seismic Hazard Map for Supporting Citizen's Disaster Prevention Measures

Abstract

The purpose of this study is to show the considerations in making a seismic hazard map for supporting citizen's disaster prevention measures. We collected existing seismic hazard maps compiled by local governments all over Japan. Following the risk management process in ISO 31000, we analyzed the information on disaster prevention measures in 181 of the maps in terms of each step (establishing the context, risk assessment, risk treatment, communication and consultation, and monitoring and review) and flow (core process) in the process.

As a resutl, the cosiderations in making a seismic hazard map for supporting citizen's disaster prevention measures are as follows: 1) showing the objectives of the map (what the local government created the map for), 2) showing the disaster prevention measures required according to the seismic intensity or damage level to be expected and the priority for the measures implementation, 3) including the device for promoting the communication and consultation among family (internal stakeholder) and with local residents (external stakeholder), 4) including the device for checking the status of disaster prevention measures, and 5) considering the order for accessing the information in accordance with the core process.