Abstract
In Kazamaura Village, Aomori Prefecture, the possibility of a sediment disaster became
very high due to the torrential rainfall in August 2021, and an “evacuation instruction ” was
issued for the entire area. In this case, no human victimizations occurred, but since a fatal
disaster was fully considered, a questionnaire survey of all households was conducted. And the
characteristics of evacuation behavior were clarified, and the potential human victimization
caused by sediment disaster was discussed. As a result, residents ' behavior could be classified
into four types. In particular, in the “Shimofuro area, ” even if the likelihood of sediment disaster
in the future were to become very high, it is highly likely that nearly one-third of residents would
not evacuate. Therefore, the likelihood of human victimizations from sediment disaster was
evaluated as “very high ”. In the future, disaster prevention education that removes the experience
bias of residents is urgently needed.
