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The volcanic explosivity index /VEI/ - An estimate of explosive magnitude for historical volcanismA composite estimate of the magnitude of past explosive eruptions, referred to as the Volcanic Explosivity Index (VEI), is proposed as a semiquantitative compromise between poor data and the need in various disciplines to evaluate the record of past volcanism. The VEI is assigned to more than 8000 historic and prehistoric eruptions. It is shown that the VEI can help detect incompleteness and reporting biases and can help in selecting subsets of the historical record suitable for each study. The VEI is a composite estimate of Walkers (1980) magnitude and/or intensity and/or destructiveness and/or (less frequently) dispersive power, violence, and energy release rate, depending on the data that are available.
Document ID
19820055486
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Newhall, C. G.
(Dartmouth Coll. Hanover, NH, United States)
Self, S.
(Dartmouth College Hanover, NH, United States)
Date Acquired
August 10, 2013
Publication Date
February 20, 1982
Publication Information
Publication: Journal of Geophysical Research
Volume: 87
Subject Category
Geophysics
Accession Number
82A39021
Funding Number(s)
CONTRACT_GRANT: NSG-5145
Distribution Limits
Public
Copyright
Other

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