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Mount Tambora, Indonesia, satellite image
Mount Tambora. Landsat 8 satellite image of Mount Tambora volcano (upper right), Sumbawa Island, Indonesia. The volcano's caldera (brown circle), an area of collapsed land resulting from a volcanic eruption, measures 6 kilometres across and is 800 metres deep. The caldera was formed in 1815 after a huge explosion that ejected massive amounts of ash and sulphur dioxide into the atmosphere. Global cooling caused by the eruption led to 1816 being called 'the year without a summer'. Image obtained by Landsat 8's Operational Land Imager (OLI), in October 2013.
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