**Mount Vesuvius remains in a prolonged quiescent phase** with only low-level fumarolic degassing and background seismicity, as confirmed by continuous Istituto Nazionale di Geofisica e Vulcanologia (INGV) monitoring. No ground deformation, elevated gas emissions, or seismic swarms indicative of magma ascent have been recorded, consistent with the volcano’s post-1944 repose that has lasted more than eight decades. Historical patterns show eruptive cycles separated by long intervals of dormancy, and official assessments state no phenomena currently suggest renewed activity. With 2026 already more than halfway complete and no unrest detected, traders assign a 95.2% implied probability to “No” for a VEI ≥1 event. A realistic but low-probability shift could occur only if rapid, undetected precursory signals emerged in the final months—something existing seismic, geodetic, and geochemical networks are designed to flag well in advance.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedVesuvius eruption with 1+ VEI in 2026?
Vesuvius eruption with 1+ VEI in 2026?
5% chance
NEW
NEW
Dec 31, 2026
5% chance
NEW
NEW
Dec 31, 2026
This market will resolve to "Yes" if the Vesuvius volcano erupts with a Volcanic Explosivity Index (VEI) of 1 or greater between market creation and December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”.
The primary resolution source will be the Smithsonian Institution Global Volcanism Program (GVP: https://volcano.si.edu/), including the 2026 eruptions page (https://volcano.si.edu/faq/index.cfm?question=eruptionsbyyear&checkyear=2026).
This market will resolve as soon as a qualifying eruption occurs, or once December 31, 2026, 11:59 PM ET has passed and no qualifying eruption has occurred. If there is an ongoing Vesuvius eruption at that time, this market may remain open for an additional 14 calendar days to verify the VEI rating of the ongoing eruption.
If the Smithsonian GVP becomes permanently unavailable, or if an ongoing eruption has not been assigned a VEI rating within 14 calendar days of December 31, 2026, this market may resolve based on a consensus of credible scientific sources, including the U.S. Geological Survey (USGS), national or regional volcanic observatories, or credible reporting of a scientific consensus.**Mount Vesuvius remains in a prolonged quiescent phase** with only low-level fumarolic degassing and background seismicity, as confirmed by continuous Istituto Nazionale di Geofisica e Vulcanologia (INGV) monitoring. No ground deformation, elevated gas emissions, or seismic swarms indicative of magma ascent have been recorded, consistent with the volcano’s post-1944 repose that has lasted more than eight decades. Historical patterns show eruptive cycles separated by long intervals of dormancy, and official assessments state no phenomena currently suggest renewed activity. With 2026 already more than halfway complete and no unrest detected, traders assign a 95.2% implied probability to “No” for a VEI ≥1 event.
A realistic but low-probability shift could occur only if rapid, undetected precursory signals emerged in the final months—something existing seismic, geodetic, and geochemical networks are designed to flag well in advance.
This market will resolve to "Yes" if the Vesuvius volcano erupts with a Volcanic Explosivity Index (VEI) of 1 or greater between market creation and December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”.
The primary resolution source will be the Smithsonian Institution Global Volcanism Program (GVP: https://volcano.si.edu/), including the 2026 eruptions page (https://volcano.si.edu/faq/index.cfm?question=eruptionsbyyear&checkyear=2026).
This market will resolve as soon as a qualifying eruption occurs, or once December 31, 2026, 11:59 PM ET has passed and no qualifying eruption has occurred. If there is an ongoing Vesuvius eruption at that time, this market may remain open for an additional 14 calendar days to verify the VEI rating of the ongoing eruption.
If the Smithsonian GVP becomes permanently unavailable, or if an ongoing eruption has not been assigned a VEI rating within 14 calendar days of December 31, 2026, this market may resolve based on a consensus of credible scientific sources, including the U.S. Geological Survey (USGS), national or regional volcanic observatories, or credible reporting of a scientific consensus.
The primary resolution source will be the Smithsonian Institution Global Volcanism Program (GVP: https://volcano.si.edu/), including the 2026 eruptions page (https://volcano.si.edu/faq/index.cfm?question=eruptionsbyyear&checkyear=2026).
This market will resolve as soon as a qualifying eruption occurs, or once December 31, 2026, 11:59 PM ET has passed and no qualifying eruption has occurred. If there is an ongoing Vesuvius eruption at that time, this market may remain open for an additional 14 calendar days to verify the VEI rating of the ongoing eruption.
If the Smithsonian GVP becomes permanently unavailable, or if an ongoing eruption has not been assigned a VEI rating within 14 calendar days of December 31, 2026, this market may resolve based on a consensus of credible scientific sources, including the U.S. Geological Survey (USGS), national or regional volcanic observatories, or credible reporting of a scientific consensus.
Market Opened: Apr 21, 2026, 3:33 PM ET
Volume
$647End Date
Dec 31, 2026Market Opened
Apr 21, 2026, 3:33 PM ETResolver
0x65070BE91...This market will resolve to "Yes" if the Vesuvius volcano erupts with a Volcanic Explosivity Index (VEI) of 1 or greater between market creation and December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”.
The primary resolution source will be the Smithsonian Institution Global Volcanism Program (GVP: https://volcano.si.edu/), including the 2026 eruptions page (https://volcano.si.edu/faq/index.cfm?question=eruptionsbyyear&checkyear=2026).
This market will resolve as soon as a qualifying eruption occurs, or once December 31, 2026, 11:59 PM ET has passed and no qualifying eruption has occurred. If there is an ongoing Vesuvius eruption at that time, this market may remain open for an additional 14 calendar days to verify the VEI rating of the ongoing eruption.
If the Smithsonian GVP becomes permanently unavailable, or if an ongoing eruption has not been assigned a VEI rating within 14 calendar days of December 31, 2026, this market may resolve based on a consensus of credible scientific sources, including the U.S. Geological Survey (USGS), national or regional volcanic observatories, or credible reporting of a scientific consensus.**Mount Vesuvius remains in a prolonged quiescent phase** with only low-level fumarolic degassing and background seismicity, as confirmed by continuous Istituto Nazionale di Geofisica e Vulcanologia (INGV) monitoring. No ground deformation, elevated gas emissions, or seismic swarms indicative of magma ascent have been recorded, consistent with the volcano’s post-1944 repose that has lasted more than eight decades. Historical patterns show eruptive cycles separated by long intervals of dormancy, and official assessments state no phenomena currently suggest renewed activity. With 2026 already more than halfway complete and no unrest detected, traders assign a 95.2% implied probability to “No” for a VEI ≥1 event.
A realistic but low-probability shift could occur only if rapid, undetected precursory signals emerged in the final months—something existing seismic, geodetic, and geochemical networks are designed to flag well in advance.
This market will resolve to "Yes" if the Vesuvius volcano erupts with a Volcanic Explosivity Index (VEI) of 1 or greater between market creation and December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”.
The primary resolution source will be the Smithsonian Institution Global Volcanism Program (GVP: https://volcano.si.edu/), including the 2026 eruptions page (https://volcano.si.edu/faq/index.cfm?question=eruptionsbyyear&checkyear=2026).
This market will resolve as soon as a qualifying eruption occurs, or once December 31, 2026, 11:59 PM ET has passed and no qualifying eruption has occurred. If there is an ongoing Vesuvius eruption at that time, this market may remain open for an additional 14 calendar days to verify the VEI rating of the ongoing eruption.
If the Smithsonian GVP becomes permanently unavailable, or if an ongoing eruption has not been assigned a VEI rating within 14 calendar days of December 31, 2026, this market may resolve based on a consensus of credible scientific sources, including the U.S. Geological Survey (USGS), national or regional volcanic observatories, or credible reporting of a scientific consensus.
The primary resolution source will be the Smithsonian Institution Global Volcanism Program (GVP: https://volcano.si.edu/), including the 2026 eruptions page (https://volcano.si.edu/faq/index.cfm?question=eruptionsbyyear&checkyear=2026).
This market will resolve as soon as a qualifying eruption occurs, or once December 31, 2026, 11:59 PM ET has passed and no qualifying eruption has occurred. If there is an ongoing Vesuvius eruption at that time, this market may remain open for an additional 14 calendar days to verify the VEI rating of the ongoing eruption.
If the Smithsonian GVP becomes permanently unavailable, or if an ongoing eruption has not been assigned a VEI rating within 14 calendar days of December 31, 2026, this market may resolve based on a consensus of credible scientific sources, including the U.S. Geological Survey (USGS), national or regional volcanic observatories, or credible reporting of a scientific consensus.
Volume
$647End Date
Dec 31, 2026Market Opened
Apr 21, 2026, 3:33 PM ETResolver
0x65070BE91...**Mount Vesuvius remains in a prolonged quiescent phase** with only low-level fumarolic degassing and background seismicity, as confirmed by continuous Istituto Nazionale di Geofisica e Vulcanologia (INGV) monitoring. No ground deformation, elevated gas emissions, or seismic swarms indicative of magma ascent have been recorded, consistent with the volcano’s post-1944 repose that has lasted more than eight decades. Historical patterns show eruptive cycles separated by long intervals of dormancy, and official assessments state no phenomena currently suggest renewed activity. With 2026 already more than halfway complete and no unrest detected, traders assign a 95.2% implied probability to “No” for a VEI ≥1 event. A realistic but low-probability shift could occur only if rapid, undetected precursory signals emerged in the final months—something existing seismic, geodetic, and geochemical networks are designed to flag well in advance.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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