fumarole
Noun
Meaning
A hole or spot in a volcanic or other region, from which fumes issue.
Source: Webster's dictionarySynonyms
ash
flue
hole
stack
aperture
geological
eruption
crater
vent
duct
funnel
igneous
chimney
pharynx
fissure
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Recent and ongoing projects include gravimetric and GPS-based geodetic monitoring, fumarole gas sampling, tephra distribution mapping, new interpretations of the Schriebers Meadow lava flow, and hazards analyses.
Today, sulfurous gases reach the surface via two fumarole pathways: Dorr Fumarole, northeast of the summit; and Sherman Crater, south of the summit.