Question: What was the vei of mt. st. helens?

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question: What was the vei of mt. st. helens during the 1980 eruption?
short_answers: 5
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question: What was the vei of mt. st. helens during the 2004-2008 eruption?
short_answers: 2
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question: What was the vei of mt. st. helens during an 1860 BC eruption?
short_answers: 6

Answer: The Volcanic Explosivity Index (VEI) is a relative measure of the explosiveness of volcanic eruptions. The scale is logarithmic, with each interval on the scale representing a tenfold increase in observed ejecta criteria, with the exception of between VEI-0, VEI-1 and VEI-2. The VEI of Mount St. Helens during the 1860 BC eruption was 6 and during the 1980 eruption it was 5. The VEI of Mount St. Helens during the 2004-2008 eruption was 2.