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the claim
Volcanic gases can be emitted through non-eruptive pathways such as degassing and fumaroles
the verdict
SUPPORTED
the evidence backs this
Recorded sources
4 sources for · 0 against
Is it true that volcanic gases can be emitted through non-eruptive pathways such as degassing and fumaroles?
Yes. Volcanic gases are regularly released through non-eruptive mechanisms such as continuous passive degassing and fumaroles.
Verdict: SUPPORTED · 4 sources for, 0 against · Last checked
The analysis
The retrieved papers consistently document non-eruptive volcanic gas emissions, specifically citing fumarolic activity and passive degassing across various active volcanoes.
Evidence for · 4
This study analyzes long-term gas emissions from fumaroles during inter-eruptive periods at Campi Flegrei.
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Caliro, S., Chiodini, G., Avino, R., Carandente, A., Cuoco, E., Vito, M. D. D., Minopoli, C., Rufino, F., Santi, A., Lages, J., Mangiacapra, A., Monteleone, B., Pappalardo, L., Taracsák, Z., Tramati, C., Vizzini, S., & Aiuppa, A. (2025). Escalation of caldera unrest indicated by increasing emission of isotopically light sulfur. doi.org. https://doi.org/10.1038/s41561-024-01632-w
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More for · 3
Underestimated Passive Volcanic Sulfur Degassing Implies Overestimated Anthropogenic Aerosol Forcing
This paper evaluates passive volcanic degassing as a major contributor to preindustrial sulfur emissions without major eruptions.
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Jongebloed, U., Schauer, A., Cole‐Dai, J., Larrick, C., Wood, R., Fischer, T., Carn, S., Salimi, S., Edouard, S. R., Zhai, S., Geng, L., & Alexander, B. (2023). Underestimated Passive Volcanic Sulfur Degassing Implies Overestimated Anthropogenic Aerosol Forcing. doi.org. https://doi.org/10.1029/2022GL102061
This research quantifies continuous passive gas emissions, such as H2O and CO2, released from Bromo volcano between eruptive events.
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Alfianti, H., Bani, P., Sumaryadi, M., Primulyana, S., Marlia, M., Saing, U., Haerani, N., & Gunawan, H. (2022). Bromo activity over the last decade: consistent passive degassing and source magma evolution. doi.org. https://doi.org/10.1186/s40562-022-00221-2
This study investigates gas dispersion from low-temperature fumaroles during passive volcanic degassing at La Soufrière de Guadeloupe.
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Rave-Bonilla, Y. P., Jessop, D., Moune, S., Garbin, C., & Moretti, R. (2023). Numerical modelling of the volcanic plume dispersion from the hydrothermal system of La Soufrière de Guadeloupe. doi.org. https://doi.org/10.30909/vol.06.02.459477
What does the evidence say?
The retrieved papers consistently document non-eruptive volcanic gas emissions, specifically citing fumarolic activity and passive degassing across various active volcanoes.
Receipt History
first checked04 Aug 2026
judged → SUPPORTED · 8404 Aug 2026
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