Volcano Auxiliary Notes

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Presentation transcript:

Volcano Auxiliary Notes © 2015 http://www.bbc.com/news/world-latin-america-32425370

Volcano Definition and History History: The word Volcano comes from the Romans. The God of Fire, Vulcan, was believed to have resided on the island of Volcano where he forged weapons for the Gods of Olympus. Definition: 1. An opening in the crust of the Earth from which magma and gases escape to the surface. 2. The mountain that is formed from volcanic processes. ©2015 http://vulcantoombs.weebly.com/mythology.html (Photo)

Classification Active- currently erupting or have erupted recently. (greater than 500 volcanoes) Dormant- not currently erupting but are considered likely to do so. Mt. St Helens was dormant for 123 years before it erupted in 1980. Extinct- (dead) volcanoes have not erupted in recent history and are not likely to erupt. ©2015 mashable.com ©2015 amser.org

Caldera a cauldron-like volcanic feature on large central volcanoes, a special sort of volcanic crater (from one to several kilometers in diameter), formed when a magma chamber was emptied. The depression then originated either in very big explosive eruptions or in erosion and collapse of the magma chamber roof. (https://en.wikipedia.org/wiki/Calder) ©2015 http://www.craterlaketrust.org/

Volcano Facts How many eruptions? 15,110 volcanoes in last 10,000 years The highest peak? 6,887 m, Ojos del Salado (Chile) The biggest eruption? 2,500 km3, Yellowstone, 2.2 Ma (USA) First volcanologist? 79 AD - Pliny the Younger Total deaths 238,000 (1600-1982) ©2015 dreamstime.com