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Brian Hargrove

on 14 September 2012

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Transcript of Tambora

photo credit Nasa / Goddard Space Flight Center / Reto Stöckli By:Brian Hargrove Tambora Volcano Mount Tambora (or Tamboro) is an active stratovolcano, also known as a composite volcano, on the island of Sumbawa, Indonesia. Sumbawa is flanked both to the north and south by oceanic crust, and Tambora was formed by the active subduction zone beneath it. According to a geological survey, prior to the 1815 eruption Tambora had the shape of a typical stratovolcano, with a high symmetrical volcanic cone and a single central vent.[18] The diameter at the base is 60 km (37 mi).[9] The central vent emitted lava frequently, which cascaded down a steep slope. Chronology of the eruption Mount Tambora experienced several centuries of inactive dormancy before 1815, as the result of the gradual cooling of hydrous magma in a closed magma chamber. Indonesia's population has been increasing rapidly since the 1815 eruption. As of 2006, the population of Indonesia has reached 222 million people,[35] of which 130 million are concentrated on Java http://dsc.discovery.com/video-topics/other/other-topics-volcano-videos.htm
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