liIii Section3OtherRskManagementSection4TokyoMetropoGovernmentRskManagementSystemlitanIntroductionSection2PreparationforNaturaDsastersSection5ReferencenformationSection1472004: Kozushima-mura2006: Oshima-machi2008: Hachijo-machiAogashima-mura2010: Niijima-mura2012: Kozushima-mura2013: Niijima-mura2015: Miyake-muraMikura jima-mura2016: Oshima-machi,Toshima-mura2017: Hachijo-machi, Aogashima-mura2018: Ogasawara Village2019: On-map training at all islands2021: Island-wide training2022: Kozushima Village2023: OshimaMiyakejima Island (role-playing)2024: Comprehensive emergency map drill for the island area2022: Joint general disaster preparedness training between TMG and Kozushima Village In regard to Tokyo Metropolitan Government's volcanic disaster prevention measures, the Tokyo Metropolitan Regional Disaster Prevention Plan (Volcanoes), which is based discussions by the Volcanic Disaster Prevention Committee as well as experiences from past volcanic disasters, establishes the following disaster prevention measures based on the characteristics of an off shore island. We plan to take urgent actions such as the construction of provisional dams when volcanic eruptions occur with the aim of protecting human life from landslide disasters along with volcanic eruptions. We have produced and stored concrete blocks used for provisional dams as "preparations at normal times" in order to effi ciently take urgent measures. TMG has set up an observation system which includes seismographs and inclinometers on each of the Izu Islands (except for Izu Oshima) to monitor volcanic activities. Izu Oshima is monitored by the national authorities through an extensive observation network. Data are shared by TMG, the Japan Meteorological Agency, the national authorities, and other research institutes. In anticipation of volcanic eruptions, earthquakes, tsunami, etc., TMG jointly conducts disaster preparedness training with the island municipalities.(9) Measures for Volcanic EruptionsEarly preparationObservation System for the Izu IslandsDisaster Preparedness Training
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