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32: Poás Volcano spews material 300 meters high after explosion inside crater

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The Extinction Protocol

February 2014COSTA RICAThe crater of Poas Volcano expelled material 300 meters into the air at noon on Tuesday. The phenomenon, called a phreatic explosion, occurred due to a reaction between magma and water at the southern border of the lake inside the volcano. However, this was not an eruption and the volcano did not spew lava. Instead, a column of steam, gas and other materials formed and spouted out the top of the volcano, confirmed the Volcanological and Seismological Observatory of Costa Rica (OVSICORI). María Martínez Cruz, a volcanology and geochemistry expert with OVSICORI, said the event can be considered “normal for the volcano’s activity, although explosion heights like the one recorded Tuesday are not that common.” This type of explosion, called phreatic, occurs when the volcano’s magma contacts water in the crater’s lagoon and evaporates quickly through fissures. That action results in an blast of…

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Written by bobby90247

March 9, 2014 at 5:29 pm

Posted in Uncategorized

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