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What is Mount Tambora?

Mount Tambora is an active stratovolcano on the northern coast of Sumbawa island in Indonesia. It is 2,851 meters (9,354 feet) high and has a caldera about 6 km (3.7 miles) across. Mount Tambora is especially known as the site of the April 1815 eruption, described as the largest volcanic eruption in recorded history. Smaller eruptions occurred in 1880 and 1967.