Natural disasters -- Volcanoes -- Disaster file, Tambora, Indonesia -- What is inside the Earth? -- Where do most volcanoes form? -- Disaster file, the ring of fire -- Volcano shapes -- Disaster file, Mauna Loa, Hawaii -- Magma and lava -- When a volcano erupts -- Disaster file, Mount Pelee, Martinique -- Predicting and measuring volcanic eruptions -- Disaster relief -- Disaster files at a glance.
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