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Volcanic eruptions observed with infrasound
Author(s) -
Johnson Jeffrey B.,
Aster Richard C.,
Kyle Philip R.
Publication year - 2004
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2004gl020020
Subject(s) - infrasound , volcano , explosive eruption , geology , seismology , explosive material , volcanic hazards , hazard analysis , vulcanian eruption , strombolian eruption , flux (metallurgy) , geophysics , magma , acoustics , geography , physics , aerospace engineering , materials science , archaeology , engineering , metallurgy
Infrasonic airwaves produced by active volcanoes provide valuable insight into the eruption dynamics. Because the infrasonic pressure field may be directly associated with the flux rate of gas released at a volcanic vent, infrasound also enhances the efficacy of volcanic hazard monitoring and continuous studies of conduit processes. Here we present new results from Erebus, Fuego, and Villarrica volcanoes highlighting uses of infrasound for constraining quantitative eruption parameters, such as eruption duration, source mechanism, and explosive gas flux.