[purpose of public announcement]
For the earth and sand disaster to occur with volcanic activity of Mount Aso, we carried out emergency decrease evil measures consisting of emergency hardware measures and emergency software measures quickly and effectively and protected life of inhabitants and mountaineer, tourist and devised "Mount Aso volcanic eruption emergency decrease evil measures erosion control plan" (we say "this plan" as follows) to contribute to the making of prefectural soil which was security/safety.
This plan gathers emergency decrease evil measures for the earth and sand disaster after eruption scenario and ash fall that assumed phenomenon and change of the scale to occur in the eruption activity in chronological order in reference to eruption activity of Mount Aso for the past 10000 years.
"Mount Aso wide area refuge project" (H30 12 a year month) for wide area evacuation at the time of large-scale eruption is formulated using eruption scenario of this plan by Kumamoto volcano disaster prevention meeting. About concrete matter to carry out wide area evacuation when volcanic alert levels 4,5 was announced, we decide to devise action plan in related organizations and will announce Mount Aso volcanic eruption emergency decrease evil measures erosion control plan including eruption scenario which is the basic information in future (from the H31 year).