Abstract
Heavy rainfall disaster happened in eastern area of Shizuoka prefecture on September 8, 2010. Thirty-one houses were damaged and 108 houses were inundated in Oyama town, Shizuoka prefecture. In this town, although the house was destroyed, human casualties were not happened. Evacuation activity of this town was researched based on a questionary survey. Data were gathered from 874 households in December 2010. Twenty-two percent of respondents evacuated for shelter or another houses. This ratio is comparable as the results of research in past flood damage areas. The town office appealed for evacuation to residents at 11:55. Since the peak of rainfall or river water level was around 16:00, this appeal was successful as a result. However, the residents who took evacuation before 15:00 were only 50%. Seventy-one percent of the respondent has answered that this town has the danger of flood damage, and the ratio is high compared with other areas. However, we cannot say that this evacuation activity was positive.
