Definitions
Sorry, no definitions found. Check out and contribute to the discussion of this word!
Etymologies
Sorry, no etymologies found.
Support
Help support Wordnik (and make this page ad-free) by adopting the word volcanic explosivity index.
Examples
Sorry, no example sentences found.
reesetee commented on the word volcanic explosivity index
A measure of the severity of a volcanic eruption. The VEI scale ranges 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 the VEI scale. The largest eruption in historic times, the Tambora eruption of 1815, was a 7.
November 7, 2007