Mount Tambora is a stratovolcano, also known as a composite volcano. In addition to a stratovolcano's conical form, other common characteristics include the volcano's steep profile, thick lava that hardens quickly and a composition that includes layers of lava, ash and fragments pushed from the volcano during an eruption.
Mount Tambora, on the island of Sumbawa, Indonesia, is famous for its 1815 eruption, which is estimated to be responsible for the deaths of tens of thousands. The top one-third of the mountain was erased by the blast. Effects of the eruption were felt throughout the world as tsunamis followed the original explosion, and weather conditions were altered for more than a year, causing agricultural disaster and even famines.