Active volcanoes right now.

HVO reports that episode 55 ended on 17 October and the Halemaʻumaʻu eruption is currently paused. Summit reinflation continues. The preliminary forecast for episode 56 fountaining is 28 October–5 November; this is a forecast window, not a confirmed start time.

INSIVUMEH's 21 October daily bulletin, reported by CONRED, described 4–8 moderate explosions per hour, ash plumes reaching approximately 4,800 m above sea level, fine ashfall around Yepocapa and avalanches into several drainages. Rainfall can generate dangerous lahars.

IMO's 30 September assessment describes continued magma accumulation and slow uplift beneath Svartsengi, with low seismicity. A new intrusion towards the Sundhnúkur crater row, possibly followed by an eruption, remains a likely scenario. The assessment does not report an ongoing eruption; the latest hazard map should be consulted for area restrictions.

INGV-Osservatorio Vesuviano published a new Campi Flegrei weekly monitoring bulletin dated 20 October, superseding the 6 October reference previously shown. Detailed seismic, deformation and gas measurements have not been independently extracted, so no unverified figures are repeated. The existing Yellow (Attention) designation is retained pending a confirmed change.

INGV published a new weekly monitoring bulletin on 20 October covering the preceding week. The latest listed Etna aviation notice, issued 16 October, is GREEN. The bulletin's detailed measurements have not been independently verified for this card; a sustained eruption is not inferred from the existence of a monitoring bulletin.

INGV reported on 20 October that the lava overflow on the Sciara del Fuoco was no longer being fed. Ordinary Strombolian explosive activity continues at variable intensity from both the North and Centre-South crater areas; tremor remained at medium-high values without significant deformation changes.

CENAPRED recorded 28 low-intensity exhalations with light ash, steam and gases in its 21 October report. Emissions were observed towards the west-southwest. Yellow Phase 2 remains in force, with a 12 km exclusion radius around the crater.

JMA maintains eruption alert Level 3 (do not approach the volcano). During 16–19 October, Minamidake produced 14 eruptions, with plumes reaching up to 2,200 m above the crater rim. JMA warns of large ballistic blocks and pyroclastic flows within approximately 2 km of Minamidake and Showa craters.

The last independently established prefectural alert decision for this card is Vigilance, following the end of the February eruption. A more recent October 2026 prefectural decision could not be verified in this review. Older daily earthquake counts are not presented as current.

YVO reports NORMAL / GREEN and background-level volcanic activity. Its 1 October monthly update documented 77 earthquakes in September, no significant recent caldera deformation, and a small hydrothermal explosion at Biscuit Basin on 27 September. Hydrothermal explosions are local hazards, not evidence of a magmatic eruption.

AVO reports that slow lava eruption continues within Great Sitkin's summit crater. The volcano remains at WATCH / ORANGE; activity is monitored using satellite and local instrumentation.

USGS Cascades Volcano Observatory continues to list Mount St. Helens at NORMAL / GREEN. No escalation has been established from the latest official regional monitoring information checked; small earthquakes alone do not indicate an eruption.

USGS Cascades Volcano Observatory continues to list Mount Rainier at NORMAL / GREEN. No escalation has been established from the latest official regional monitoring information checked; background seismicity is not an eruption signal by itself.

PHIVOLCS maintains Alert Level 2 (Decreased Unrest). Its 21 October bulletin recorded four volcanic earthquakes, a 100 m plume, crater glow and continued edifice inflation. The 6 km Permanent Danger Zone remains restricted.

PVMBG reported continuing dome-related lava avalanches during 8–14 October, travelling as far as 2 km down the Sat/Putih, Bebeng, Krasak and Boyong drainages. Alert Level III (Siaga) remained in force, with exclusion distances varying from 3 to 7 km by sector.

PHIVOLCS maintains Alert Level 2 (Increased Unrest). Its 21 October bulletin recorded five volcanic earthquakes, a 500 m plume and continued inflation with short-term deflation. Entry into the 4 km Permanent Danger Zone remains prohibited.

PHIVOLCS maintains Alert Level 1 (Low-level Unrest). Its 21 October bulletin reported one minor, approximately one-minute phreatic eruption, two volcanic earthquakes including tremor, a 600 m plume and short-term inflation of Taal Volcano Island. The island remains a Permanent Danger Zone.

OVSICORI-UNA published a new weekly volcanic surveillance bulletin dated 16 October. Detailed Poás observations and its exact current alert designation have not been independently extracted from that bulletin, so the previously cited Level 2 (Warning) should not be treated as newly verified on 22 October.

PVMBG reported continuing eruptions on 20 October, with an ash-and-gas plume reaching 300 m above the vent and one seismically detected explosion. The alert level remains Level II (Waspada).

PVMBG reported continuing eruptions on 20 October, including 77 explosions and ash plumes up to 500 m above the vent. One rockfall was detected. The alert level remains Level II (Waspada).

PVMBG recorded 88 seismically detected explosions on 20 October, with crater glow and a lava flow extending 600 m southeast from the crater rim. A gas-and-vapour plume rose 200 m above the vent. Alert Level II remains in force.

PVMBG reported 53 explosions on 20 October, with plumes rising up to 200 m above the vent and 13 seismically detected rockfalls. The alert level remains Level III (Siaga).

AVO reports continuing low-level volcanic unrest at Shishaldin. Elevated seismic activity, including small earthquakes and tremor, has been detected; the volcano remains at ADVISORY / YELLOW.

GeoNet maintains Volcanic Alert Level 1 (minor volcanic unrest) and Aviation Colour Code Green. Its latest listed bulletin, dated 11 August, reported decreasing volcanic tremor with little change in gas emissions or Crater Lake temperature; no newer dated bulletin was established in this review.

IGN continues monitoring Tenerife's seismic and volcanic activity. No new dated official announcement establishing an eruption or a change in volcanic alert status was verified during the 22 October review. Seismic activity alone is not evidence that an eruption is imminent.

MARN continues to monitor San Miguel. A current October 2026 MARN bulletin establishing a change in activity or an escalation could not be independently verified for this card. No fresh daily measurements or new eruption claims are presented.

No October 2026 bulletin from UEPC Colima or Universidad de Colima establishing a change in volcanic activity was independently verified. Previously published exclusion-zone guidance should be confirmed directly with local civil protection before relying on it.

JMA maintains Level 2 (restriction around the crater). Its 16 October report recorded intermittent increases in volcanic tremor and sulfur dioxide emissions of 3,200 tonnes per day, up from 1,200 tonnes on 14 October. Eruption hazards remain possible within approximately 1 km of Nakadake First Crater.

INGV-Osservatorio Vesuviano's September monthly summary described baseline volcanic conditions. No newer independently verified monthly assessment establishing a change in alert level was found in this review. Individual earthquakes alone do not demonstrate magmatic unrest.

The Servicio Geológico Colombiano published a newer weekly bulletin on 20 October covering 13–19 October, with the alert listed as Yellow (active volcano with changes). Detailed monitoring measurements from that bulletin have not been independently extracted; no earlier figures are represented as current.