Abstract
More than ten thousands inhabitants were obligated to stay places of refuse for a long time without their ordinary works during volcanic eruption of Mt. Fugen in Unzen. 1455 temporary dwellings were built to give relief to the suffers. The disaster relief law was stretched to cope with the size of family in this area. Living environment of the dwelling was improved and disaster mental health was checked to support evacuees living in the temporary dwelling for a long time. In the present paper, management on living environment of temporary dwellings is studied by reports and questionnaire survey and compared with the case of earthquake disasters.