Volcanic activity worldwide 19 Nov 2025: Stromboli volcano, Santiaguito, Fuego, Popocatépetl, Soput…

Stromboli (Eolian Islands, Italy): The Instituto Nazionale di Geofisica e Vulcanologia-Osservatorio Etneo (INGV-Osservatorio Etneo) reported that the eruption continued at Stromboli on 18 November 2025 (local). The alert level remained at „Orange“ (level 3 on a 4-level scale). The alert level remained at „Yellow“ (level 2 on a 4-level scale).
Source: Instituto Nazionale di Geofisica e Vulcanologia-Osservatorio Etneo (INGV-Osservatorio Etneo)
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Current Alerts:
Observatory alert level: „Yellow“ (level 2 on a 4-level scale)

Krasheninnikov (Kamchatka, Russia): The Kamchatkan Volcanic Eruption Response Team (KVERT) and Laboratory for Seismic and Volcanic Activity Research (ISVA) reported that the eruption continued at Krasheninnikov on 17 November 2025 (local). The aviation alert level remained at „Orange“ (level 3 on a 4-level scale).
Source: Kamchatkan Volcanic Eruption Response Team (KVERT); Laboratory for Seismic and Volcanic Activity Research (ISVA)
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Current Alerts:
Observatory alert level: unavailable or not collected

Shiveluch (Kamchatka): The Kamchatkan Volcanic Eruption Response Team (KVERT) and Laboratory for Seismic and Volcanic Activity Research (ISVA) reported that the eruption continued at Sheveluch on 17 November 2025 (local). The aviation alert level remained at „Orange“ (level 3 on a 4-level scale).
Source: Kamchatkan Volcanic Eruption Response Team (KVERT); Laboratory for Seismic and Volcanic Activity Research (ISVA)
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Current Alerts:
Observatory alert level: unavailable or not collected

Bezymianny (Kamchatka): The Kamchatkan Volcanic Eruption Response Team (KVERT) and Laboratory for Seismic and Volcanic Activity Research (ISVA) reported that the eruption continued at Bezymianny on 17 November 2025 (local). The aviation alert level remained at „Orange“ (level 3 on a 4-level scale).
Source: Kamchatkan Volcanic Eruption Response Team (KVERT); Laboratory for Seismic and Volcanic Activity Research (ISVA)
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Current Alerts:
Observatory alert level: unavailable or not collected

Sakurajima (Kyushu, Japan): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 12000 ft (3700 m) altitude or flight level 120 and is moving at 35 kts in E direction.
The full report is as follows: VA CONTINUOUSLY OBS IN SATELLITE IMAGERY OBS VA DTG:19/1720Z to 12000 ft (3700 m)
…19 Nov:
The Japan Meteorological Agency (JMA) reported that the eruption continued at Aira on 18 November 2025 (local). Ash and gas plume(s) rose to a maximum of 900 m (2,953 ft) above the vent. There was 1 seismically detected explosion reported. The alert level remained at „Level 3 – Restriction on proximity to the volcano“ (on a 5-level scale).
Source: Japan Meteorological Agency (JMA)
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Current Alerts:
Observatory alert level: „Level 3 – Restriction on proximity to the volcano“ (on a 5-level scale)

Canlaon (Central Philippines): The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that the eruption continued at Kanlaon on 18 November 2025 (local). The alert level remained at „2 – Moderate Level of Volcanic Unrest“ (level 2 on a 0–5 level scale).
Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)
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Current Alerts:
Observatory alert level: „2 – Moderate Level of Volcanic Unrest“ (level 2 on a 0–5 level scale)

Taal (Luzon, Philippines): The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that the eruption continued at Taal on 18 November 2025 (local). The alert level remained at „1 – Low-Level Unrest“ (on a 0–5 level scale).
Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)
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Current Alerts:
Observatory alert level: „1 – Low-Level Unrest“ (on a 0–5 level scale)

Karangetang (Siau Island, Sangihe Islands, Indonesia): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Karangetang on 18 November 2025 (local). The alert level remained at „Level 2 – Alert“ (on a 4-level scale).
Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)
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Current Alerts:
Observatory alert level: „Level 2 – Alert“ (on a 4-level scale)

Raung (East Java): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Raung on 18 November 2025 (local). The alert level remained at „Level 2 – Alert“ (on a 4-level scale).
Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)
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Current Alerts:
Observatory alert level: „Level 2 – Alert“ (on a 4-level scale)

Ibu (Halmahera, Indonesia): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: ERUPTION LAST REPORTED AT 19/0521Z EST VA DTG:19/1440Z
…19 Nov:
The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Ibu on 18 November 2025 (local). The alert level remained at „Level 2 – Alert“ (on a 4-level scale).
Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)
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Current Alerts:
Observatory alert level: „Level 2 – Alert“ (on a 4-level scale)

Lewotobi (Flores): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Lewotobi (Laki-Laki) on 18 November 2025 (local). Gas and vapor plume(s) rose to a maximum of 100 m (328 ft) above the vent. There was 1 seismically detected rockfall. The alert level remained at „Level 3 – Standby“ (on a 4-level scale).
Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)
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Current Alerts:
Observatory alert level: „Level 3 – Standby“ (on a 4-level scale)

Soputan (North Sulawesi, Indonesia): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Soputan on 18 November 2025 (local). The alert level remained at „Level 2 – Alert“ (on a 4-level scale).
Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)
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Current Alerts:
Observatory alert level: „Level 2 – Alert“ (on a 4-level scale)

Lewotolo (Lesser Sunda Islands): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Lewotolok on 18 November 2025 (local). The alert level remained at „Level 2 – Alert“ (on a 4-level scale).
Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)
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Current Alerts:
Observatory alert level: „Level 2 – Alert“ (on a 4-level scale)

Merapi (Central Java, Indonesia): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Merapi on 18 November 2025 (local). Gas and vapor plume(s) rose to a maximum of 150 m (492 ft) above the vent. There were 2 hot rockfalls, traveling up to 1,800 m. There were 66 seismically detected rockfalls. The alert level remained at „Level 3 – Standby“ (on a 4-level scale).
Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)
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Current Alerts:
Observatory alert level: „Level 3 – Standby“ (on a 4-level scale)

Semeru (East Java, Indonesia): The elevated activity at the volcano continues.
Another such strong block-and-ash flow took place from the summit about 04:45 PM local time, showing in the webcam video.
…19 Nov:
The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Semeru on 18 November 2025 (local). Ash and gas plume(s) rose to a maximum of 800 m (2,625 ft) above the vent. There were 156 seismically detected explosions reported. There were 26 seismically detected rockfalls. The alert level remained at „Level 2 – Alert“ (on a 4-level scale). Activity also included: seismically detected flowage event(s).
Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)
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Current Alerts:
Observatory alert level: „Level 2 – Alert“ (on a 4-level scale)

…19 Nov:
A strong eruption occurred at the volcano a couple of hours ago.
At about 04:00 PM local time today, a massive pyroclastic flow descended over the southern slope. The block-and-ash flow has been likely triggered by the gravitational collapse of the lava dome in the inner summit crater as well as the lava flow on the steep slope of the volcano. It also formed secondary ash columns (so-called phoenix clouds), as can be seen in the image, and rose about 2 km above the summit.
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Pyroclastic flows are deadly, turbulent hot avalanche of lava rock fragments of all sizes embedded in a mixture of turbulent gas and ash racing down slopes.
Avoid all activities within 8 km of the summit in the southeastern sector along the Besuk Kobokan river, which is currently the most hazardous area.

Marapi (Western Sumatra, Indonesia): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Marapi on 18 November 2025 (local). The alert level remained at „Level 2 – Alert“ (on a 4-level scale).
Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)
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Current Alerts:
Observatory alert level: „Level 2 – Alert“ (on a 4-level scale)

Dempo (Sumatra): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Dempo on 18 November 2025 (local). The alert level remained at „Level 2 – Alert“ (on a 4-level scale).
Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)
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Current Alerts:
Observatory alert level: „Level 2 – Alert“ (on a 4-level scale)

Dukono (Halmahera): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Dukono on 18 November 2025 (local). The alert level remained at „Level 2 – Alert“ (on a 4-level scale).
Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)
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Current Alerts:
Observatory alert level: „Level 2 – Alert“ (on a 4-level scale)

Awu (Sulawesi & Sangihe Islands): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Awu on 18 November 2025 (local). The alert level remained at „Level 2 – Alert“ (on a 4-level scale).
Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)
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Current Alerts:
Observatory alert level: „Level 2 – Alert“ (on a 4-level scale)

Kerinci (Sumatra): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Kerinci on 18 November 2025 (local). The alert level remained at „Level 2 – Alert“ (on a 4-level scale).
Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)
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Current Alerts:
Observatory alert level: „Level 2 – Alert“ (on a 4-level scale)

Lokon-Empung (North Sulawesi, Indonesia): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Lokon-Empung on 18 November 2025 (local). The alert level remained at „Level 2 – Alert“ (on a 4-level scale).
Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)
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Current Alerts:
Observatory alert level: „Level 2 – Alert“ (on a 4-level scale)

Kilauea (Hawai’i): The United States Geological Survey – Hawaiian Volcano Observatory (USGS-HVO) reported that the eruption continued at Kilauea on 18 November 2025 (local). Glow was observed overnight at both the north and south vents. Gas plume(s) were reported. The alert level remained at „Orange“ (level 3 on a 4-level scale). The alert level remained at „Watch“ (level 3 on a 4-level scale).
Source: United States Geological Survey – Hawaiian Volcano Observatory (USGS-HVO)
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Current Alerts:
Observatory alert level: „Watch“ (level 3 on a 4-level scale)

Shishaldin (Aleutian Islands, Alaska): The United States Geological Survey – Alaska Volcano Observatory (USGS-AVO) reported that unrest continued at Shishaldin between 17 November 2025 (local) and 18 November 2025 (local). The alert level remained at „Yellow“ (level 2 on a 4-level scale). The alert level remained at „Advisory“ (level 2 on a 4-level scale).
Source: United States Geological Survey – Alaska Volcano Observatory (USGS-AVO)
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Current Alerts:
Observatory alert level: „Advisory“ (level 2 on a 4-level scale)

Great Sitkin (United States, Aleutian Islands): The United States Geological Survey – Alaska Volcano Observatory (USGS-AVO) reported that the eruption continued at Great Sitkin between 17 November 2025 (local) and 18 November 2025 (local). Lava continued to erupt in the summit crater. There were seismically detected rockfalls. The alert level remained at „Orange“ (level 3 on a 4-level scale). The alert level remained at „Watch“ (level 3 on a 4-level scale). Activity also included: thermal anomaly(ies).
Source: United States Geological Survey – Alaska Volcano Observatory (USGS-AVO)
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Current Alerts:
Observatory alert level: „Watch“ (level 3 on a 4-level scale)

Popocatépetl (Central Mexico): The Centro Nacional de Prevención de Desastres (CENAPRED) reported that the eruption continued at Popocatépetl between 17 November 2025 (local) and 18 November 2025 (local). Gas and vapor plume(s) were reported. The alert level remained at „Yellow Alert – Phase 2“ (level 4 on a 7-level scale).
Source: Centro Nacional de Prevención de Desastres (CENAPRED)
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Current Alerts:
Observatory alert level: „Yellow Alert – Phase 2“ (level 4 on a 7-level scale)

Santiaguito (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 14000 ft (4300 m) altitude or flight level 140 .
The full report is as follows: LGT VA EMS to 14000 ft (4300 m)

Fuego (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 14000 ft (4300 m) altitude or flight level 140 .
The full report is as follows: FRQT VA EMS to 14000 ft (4300 m)

Turrialba (Costa Rica): The Observatorio Vulcanológico y Sismológico de Costa Rica – Universidad Nacional (OVSICORI-UNA) reported that unrest continued at Turrialba on 18 November 2025 (local). The alert level remained at „Level 2 – Warning“ (on a 0–4 level scale).
Source: Observatorio Vulcanológico y Sismológico de Costa Rica – Universidad Nacional (OVSICORI-UNA)
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Current Alerts:
Observatory alert level: „Level 2 – Warning“ (on a 0–4 level scale)

Rincón de la Vieja (Costa Rica): The Observatorio Vulcanológico y Sismológico de Costa Rica – Universidad Nacional (OVSICORI-UNA) reported that unrest continued at Rincón de la Vieja on 18 November 2025 (local). The alert level remained at „Level 2 – Warning“ (on a 0–4 level scale). The aviation alert level remained at „Yellow“ (level 2 on a 4-level scale).
Source: Observatorio Vulcanológico y Sismológico de Costa Rica – Universidad Nacional (OVSICORI-UNA)
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Current Alerts:
Observatory alert level: „Level 2 – Warning“ (on a 0–4 level scale)

Poas (Costa Rica): The Observatorio Vulcanológico y Sismológico de Costa Rica – Universidad Nacional (OVSICORI-UNA) reported that the eruption continued at Poás on 18 November 2025 (local). The alert level remained at „Level 2 – Warning“ (on a 0–4 level scale). The aviation alert level remained at „Yellow“ (level 2 on a 4-level scale).
Source: Observatorio Vulcanológico y Sismológico de Costa Rica – Universidad Nacional (OVSICORI-UNA)
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Current Alerts:
Observatory alert level: „Level 2 – Warning“ (on a 0–4 level scale)

Sangay (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 24000 ft (7300 m) altitude or flight level 240 and is moving at 5 kts in S direction.
The full report is as follows: VA EM DETECTED to 24000 ft (7300 m)
…19 Nov:
The Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN) reported that the eruption continued at Sangay between 17 November 2025 (local) and 18 November 2025 (local). There were 117 seismically detected explosions reported. Crater incandescence was observed overnight. The alert level remained at „2 – Yellow“ (on a 4-level scale).
Source: Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN)
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Current Alerts:
Observatory alert level: „2 – Yellow“ (on a 4-level scale)

Reventador (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 17000 ft (5200 m) altitude or flight level 170 and is moving at 5 kts in S direction.
The full report is as follows: ONGOING VA EMS to 17000 ft (5200 m)
…19 Nov:
The Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN) reported that the eruption continued at Reventador between 17 November 2025 (local) and 18 November 2025 (local). There were 73 seismically detected explosions reported. Ash and gas plume(s) rose to a maximum of 1,500 m (4,921 ft) above the vent. On the morning of 18 November, surveillance cameras recorded a pyroclastic density current (PDC), or pyroclastic flow, that descended the SW flank to 700 m below crater level. The alert level remained at „3 – Orange“ (on a 4-level scale).
Source: Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN)
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Current Alerts:
Observatory alert level: „3 – Orange“ (on a 4-level scale)

Sabancaya (Peru): The Centro Vulcanológico Nacional del Instituto Geofísico del Perú (CENVUL-IGP) reported that the eruption continued at Sabancaya between 17 November 2025 (local) and 18 November 2025 (local). Gas and vapor plume(s) rose to a maximum of 100 m (328 ft) above the vent. A total of 25 earthquakes related to the movement of magma and gases were recorded. The alert level remained at „Orange“ (level 3 on a 4-level scale). Activity also included: thermal anomaly(ies).
Source: Centro Vulcanológico Nacional del Instituto Geofísico del Perú (CENVUL-IGP)
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Current Alerts:
Observatory alert level: „Orange“ (level 3 on a 4-level scale)

Volcano Activity Summary for 19 Nov 2025: