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Measuring the Size of Explosive Volcanic Eruptions
March 4, 2013 |

You have probably heard of the Richter Scale for measuring earthquakes, the Saffir-Simpson Scale for hurricanes and the Fujita Scale for tornadoes. The Volcanic Explosivity Index is used to compare the size of explosive volcanic eruptions.

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The Utah Supervolcano
December 15, 2013 | Brigham Young University
"Brigham Young University geologists found evidence of some of the largest volcanic eruptions in earth’s history right in their own backyard. These supervolcanoes aren’t active today, but 30 million years ago more than 5,500 cubic kilometers of magma erupted during a one-week period near a place called Wah Wah Springs." Quoted from the Brigham Young University press release. Related: Volcanic Explosivity Index

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