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Eruption Warnngor Eruption Warnngiilii(ii(ii54321Resdential SpecaWarnngArea)Eruption WarnngCrater Area) orCrater Near-WarnngWarnngEruptionForecastForecastTypeNameScopeResidential areas and the crater sideFrom the crater to near residential areasAround the craterInside the crater, etc.Level (Keyword)(Evacuation)(Evacuation forthe elderly, etc.)(Restriction onproximity to thevolcano)(Restriction onproximity to thecrater)(Potential forincreased activity)Volcanic ActivityAn eruption that causes serious damage to residential areas has occurred or is imminent.An eruption that causes serious damage to residential areas is expected (and increasingly likely) to occur.An eruption with significant impact (life-threatening if it enters this area) to the proximity of residential areas has occurred or is expected to occur.An eruption impacting the proximity of the crater (life-threatening if it enters this area) has occurred or is expected to occur.[Izu Oshima, Miyakejima, Hachijojima, Niijima, Kozushima] Quiet volcanic activity Depending on the state of volcanic activity, volcanic ash ejections, etc. may be seen in the crater (life in danger if in this area). [Aogashima]Quiet volcanic activity*The level changes depending on the activity state of the volcano.Action of residents, etc., and response to mountain entrants, climbers, etc.Need to evacuate from residential areas at risk.Need to evacuate the elderly and other people who need special support in evacuating in residential areas where cautiousness is necessary, and to prepare for the evacuation of residents.Prohibition of mountain climbing, entry restrictions into dangerous areas, etc. Need to prepare for the evacuation of the elderly and other people who need special support in evacuating depending on the situation. Residents live normal daily livesRestrictions on access to the proximity of the crater, etc. Residents live normal daily livesAccess restrictions to the summit crater and nearby areas depending on conditions, etc. 　Eruption Alarms and Forecasts 　The Japan Meteorological Agency publishes various information based on volcanic activities. For particularly active volcanos, it has established an eruption warning level that provides information about evacuations. The six targeted volcanoes in Tokyo have been forecast as follows: Izu Oshima in December 2007, Miyakejima in March 2008, Hachijojima and Aogashima in May 2018, Niijima and Kozushima in July, 2019. Based on these eruption alert levels shown in the table, the disaster preparedness measures will be planned. (As of June 2024: six targeted volcanoes: Level 1)　The detailed scope of regulations for each level is determined by the regional disaster preparedness plan of each municipality.〔Volcanic eruption alert level of six targeted volcanoes〕　Evacuation System　Quick and appropriate evacuation measures are crucial at times of volcanic eruptions, since cinders, lapilli, and lava flows can cause damage to wide areas and endanger lives. In case of an evacuation out of the island, it is important to secure boats through cooperation with relevant organizations and by requisition.48