volcanic explosivity index

   a measure of the severity of a volcanic eruption. The VEI scale is from 0 to 8; an index value of v corresponds to an output of at least 103+v cubic meters of magma. The Mt. St. Helens eruption of 1980 was a 5 on this scale, and the largest eruption of historic times (the Tambora eruption of 1815) rated a 7. A table is provided.

Dictionary of units of measurement. 2015.

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  • Volcanic Explosivity Index — USGS PHOTO GLOSSARY OF VOLCANIC TERMS The Volcanic Explosivity Index, or VEI, was proposed in 1982 as a way to describe the relative size or magnitude of explosive volcanic eruptions. It is a 0 to 8 index of increasing explosivity. Each increase… …   Glossary of volcanic terms

  • Volcanic Explosivity Index — Der Vulkanexplosivitätsindex (Abkürzung VEI, engl. Volcanic Explosivity Index) ist eine logarithmische Skala von 0 bis 8 zur Angabe der Stärke eines Vulkanausbruchs, vergleichbar mit der Richterskala für Erdbeben. Messgrößen sind die Menge an… …   Deutsch Wikipedia

  • Volcanic Explosivity Index — The Volcanic Explosivity Index (VEI) was devised by Chris Newhall of the U.S. Geological Survey and Steve Self at the University of Hawaiokinai in 1982 to provide a relative measure of the explosiveness of volcanic eruptions. Volume of products,… …   Wikipedia

  • vEI index — GLOSSARY OF VOLCANIC TERMS The Volcanic Explosivity Index, which is a measure of the size of an eruption based on its magnitude, intensity and destructive power. The VEI is measured on an eight point scale, where 8 is the most destructive and… …   Glossary of volcanic terms

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  • Taupo Volcanic Zone — The Taupo Volcanic Zone is a highly active volcanic area in the North Island of New Zealand. It is named after Lake Taupo, the flooded caldera of the largest volcano in the zone. ActivityThere are numerous volcanic vents and geothermal fields in… …   Wikipedia

  • VEI — USGS PHOTO GLOSSARY OF VOLCANIC TERMS See: Volcanic Explosivity Index …   Glossary of volcanic terms

  • VEI — Volcanic Explosivity Index (Academic & Science » Geology) Volcanic Explosivity Index (Academic & Science » Ocean Science) Volcanic Explosivity Index (Academic & Science » Meteorology) * Visual Effects, Inc. (Business » Firms) * Virtually… …   Abbreviations dictionary

  • Mount Rinjani — 1995 eruption Elevation 3,726 m (12,224 ft)  …   Wikipedia

  • Mount Tambora — Aerial view of the caldera of Mount Tambora Elevation …   Wikipedia

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