ABSTRACT

Global Volcanic Earthquake Swarm Database 1979-1989   [open pdf - 325KB]

"Earthquake swarms are pervasive at volcanoes, but have seldom been studied systematically. Most swarms that are described in the literature are those that occurred in association with eruptions; indeed, earthquake swarms are the most reliable method of forecasting eruptions. For the purpose of this report, a swarm is defined as many earthquakes of the same size occurring in a small volume. Swarms are different in these two ways from a mainshock-aftershock sequence or a foreshock-mainshock-aftershock sequence (fig. 1). Swarms are especially common in volcanic areas. Because swarms are such a common and important phenomenon, we undertook a systematic and comprehensive study of swarms at volcanoes using modern commercially available database software. We term the result the Global Volcanic Earthquake Swarm Database (GVESD)."

Report Number:
Open-File Report 96-69
Author:
Publisher:
Date:
1996
Copyright:
Public Domain
Retrieved From:
Alaska Volcano Observatory: http://www.avo.alaska.edu/
Format:
pdf
Media Type:
application/pdf
URL:
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