A study on the disaster risk formation by residential area development situation after the Great East Japan Earthquake

Abstract

This study examines the disaster risk formation by residential area development after the Great East Japan Earthquake We analyze the relationship between residential area development situation and hazards including fire and landslide. It clarifies the different disaster risk formation in two cities as follows. New housing reconstruction is concentrated in mountainside area where the designation of landslide warning area is delayed and water supplies for fire-fighting is insufficient in Rikuzentakata-city. As for Kesennuma-city, the ratio of water supplies for fire-fighting is relatively high because of infill development of new housing reconstruction, however, it founds the another risks such as width of adjacent road and land which increase the risk of fire.