Volcanic activity worldwide 21 Nov 2025: Santiaguito volcano, Pacaya, Fuego, Popocatépetl, Barren I…

Krasheninnikov (Kamchatka, Russia): The Kamchatkan Volcanic Eruption Response Team (KVERT) reported that the eruption continued at Krasheninnikov on 20 November 2025 (local). Gas and vapor plume(s) were reported. A plume of resuspended ash was detected in satellite imagery, extending 190 km to the SE. Lava flows continued to advance down the E flank of the North Cone of the volcano. The aviation alert level remained at „Orange“ (level 3 on a 4-level scale). Activity also included: thermal anomaly(ies).
Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
… [read more] … [show less]
Current Alerts:
Observatory alert level: unavailable or not collected

Shiveluch (Kamchatka): The Kamchatkan Volcanic Eruption Response Team (KVERT) reported that the eruption continued at Sheveluch on 20 November 2025 (local). Gas and vapor plume(s) were reported. Growth of the Young Sheveluch lava dome continued, accompanied by powerful gas and steam emissions. The aviation alert level remained at „Orange“ (level 3 on a 4-level scale).
Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
… [read more] … [show less]
Current Alerts:
Observatory alert level: unavailable or not collected

Bezymianny (Kamchatka): The Kamchatkan Volcanic Eruption Response Team (KVERT) reported that the eruption continued at Bezymianny on 20 November 2025 (local). Lava effused onto the flanks. Powerful gas and steam plumes accompanied effusive activity. Hot avalanches originated from the lava flow fronts. A bright thermal anomaly was observed daily. The aviation alert level remained at „Orange“ (level 3 on a 4-level scale).
Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
… [read more] … [show less]
Current Alerts:
Observatory alert level: unavailable or not collected

…21 Nov:
The Kamchatkan Volcanic Eruption Response Team (KVERT) raised the Aviation Color Code at Bezymianny to Orange (the second highest level on a four-color scale) at 0351 on 10 November due to increasing activity. During the previous few days a large and hot thermal anomaly was identified in satellite images, and intense gas-and-steam emissions along with hot avalanches were visible. The Far Eastern Branch of the Russian Academy of Sciences (FEB RAS) reported that hot avalanches of material descended the SE flank on most days during 7-16 November; weather clouds sometimes obscured views.
Steam, gas, and ash plumes rose 1.2 km above the summit and drifted SW on 13 November. Dates are reported in UTC; specific events are in local time where noted.
… [read more] … [show less]
Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Institute of Volcanology and Seismology (IVS) of the Far Eastern Branch of the Russian Academy of Sciences (FEB RAS)
—

Sakurajima (Kyushu, Japan): The Japan Meteorological Agency (JMA) reported that the eruption continued at Aira on 20 November 2025 (local). A high-sensitivity surveillance camera recorded incandescence at Minamidake Crater at night. The alert level remained at „Level 3 – Restriction on proximity to the volcano“ (on a 5-level scale).
Source: Japan Meteorological Agency (JMA)
… [read more] … [show less]
Current Alerts:
Observatory alert level: „Level 3 – Restriction on proximity to the volcano“ (on a 5-level scale)

Suwanose-jima (Ryukyu Islands): (20 Nov) Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTED AT 20251120/2240Z FL060 EXTD S OBS VA DTG:20/2240Z

Canlaon (Central Philippines): The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that the eruption continued at Kanlaon on 20 November 2025 (local). Plume(s) were reported. 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)
… [read more] … [show less]
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 20 November 2025 (local). Plume(s) were reported. A total of 4 episodes of volcanic tremor lasted from 10–13 minutes. The alert level remained at „1 – Low-Level Unrest“ (on a 0–5 level scale).
Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)
… [read more] … [show less]
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 20 November 2025 (local). Gas and vapor plume(s) were reported. There were seismically detected rockfalls. 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)
… [read more] … [show less]
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 20 November 2025 (local). Gas plume(s) were reported. 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)
… [read more] … [show less]
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 21/0034Z EST VA DTG:21/1310Z
…21 Nov:
The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Ibu on 20 November 2025 (local). Ash and gas plume(s) were reported. There were seismically detected explosions reported. 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)
… [read more] … [show less]
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 20 November 2025 (local). Gas and vapor plume(s) were reported. 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)
… [read more] … [show less]
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 20 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)
… [read more] … [show less]
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 20 November 2025 (local). Gas and vapor plume(s) were reported. There were seismically detected explosions reported. 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)
… [read more] … [show less]
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 20 November 2025 (local). Gas and vapor plume(s) were reported. There were hot rockfalls. There were 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)
… [read more] … [show less]
Current Alerts:
Observatory alert level: „Level 3 – Standby“ (on a 4-level scale)

Semeru (East Java, Indonesia): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VA ERUPTION LAST REPORTED AT 21/1030Z EST VA DTG:21/1100Z
…21 Nov:
The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Semeru on 20 November 2025 (local). Gas and vapor plume(s) were reported. There were seismically detected explosions reported. The alert level remained at „Level 4 – Caution“ (on a 4-level scale). Activity also included: seismically detected pyroclastic density current(s) (PDCs), seismic swarm(s).
Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)
… [read more] … [show less]
Current Alerts:
Observatory alert level: „Level 4 – Caution“ (on a 4-level scale)

…21 Nov:
The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that activity continued at Semeru during 13-18 November with a larger eruption on 19 November. White-and-gray or gray ash plumes rose 400-800 m above the summit and drifted N, NE, and E during 13-14 and 16-17 November. Eruptive events were sometimes recorded during 14-17 November, but weather conditions prevented visual confirmation.
At 1413 on 19 November activity intensified and a series of pyroclastic density currents (PDCs) traveled down the flanks. Although foggy conditions obscured views, incandescent avalanches of material were visible descending the Besuk Kobokan drainage on the S flank. PDCs continued descending the flanks through 1558.
… [read more] … [show less]
At 1600 the Alert level was raised to 3 (the second highest level on a scale of 1-4) and the public was warned to stay at least 5 km away from the summit in all directions, 17 km from the summit to the SE, and 500 m from the banks of the Kobokan drainage as far as 17 km from the summit. Seismicity activity indicated that the eruption continued at a high level with increasing numbers of signals indicating avalanches. At 1700 the Alert level was raised to 4 (the highest level) and the exclusion zone was expanded 8 km from the summit in all directions, 20 km from the summit to the SE, and 500 m from the banks of the Kobokan drainage.
According to the Badan Nacional Penanggulangan Bencana (BNPB) PDCs traveled as far as 13 km down the SE and S flanks, though a news article noted that they may have traveled as far as 14 km. The Darwin VAAC reported that ash plumes rose 16.5-18 km (54,000-59,000 ft) a.s.l. and drifted SW during 1740-2040 on 19 November based on satellite data, webcam images, and ground reports.

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 20 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)
… [read more] … [show less]
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 20 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)
… [read more] … [show less]
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 20 November 2025 (local). Ash and gas plume(s) were reported. There were seismically detected explosions reported. 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)
… [read more] … [show less]
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 20 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)
… [read more] … [show less]
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 20 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)
… [read more] … [show less]
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 20 November 2025 (local). Gas plume(s) were reported. 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)
… [read more] … [show less]
Current Alerts:
Observatory alert level: „Level 2 – Alert“ (on a 4-level scale)

White Island (New Zealand): Volcanic Ash Advisory Center Wellington (VAAC) issued the following report: ERUPTION AT 20251120/0400Z CONTINUOUS LOW LEVEL ERUPTION

Kilauea (Hawai’i): The United States Geological Survey – Hawaiian Volcano Observatory (USGS-HVO) reported that the eruption continued at Kilauea on 20 November 2025 (local). Glow was observed overnight at both the north and south vents. Gas plume(s) were reported. Continuous tremor has been recorded since the early morning hours of 18 November. The alert level remained at „Watch“ (level 3 on a 4-level scale). The aviation alert level remained at „Orange“ (level 3 on a 4-level scale).
Source: United States Geological Survey – Hawaiian Volcano Observatory (USGS-HVO)
… [read more] … [show less]
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 19 November 2025 (local) and 20 November 2025 (local). The alert level remained at „Advisory“ (level 2 on a 4-level scale). The aviation alert level remained at „Yellow“ (level 2 on a 4-level scale).
Source: United States Geological Survey – Alaska Volcano Observatory (USGS-AVO)
… [read more] … [show less]
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 19 November 2025 (local) and 20 November 2025 (local). Lava continued to erupt in the summit crater. The alert level remained at „Watch“ (level 3 on a 4-level scale). The aviation alert level remained at „Orange“ (level 3 on a 4-level scale).
Source: United States Geological Survey – Alaska Volcano Observatory (USGS-AVO)
… [read more] … [show less]
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 19 November 2025 (local) and 20 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)
… [read more] … [show less]
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: VA SEEN IN SAT to 14000 ft (4300 m)
…21 Nov:
The Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) reported that the eruption continued at Santa María between 19 November 2025 (local) and 20 November 2025 (local). Glow was observed at the crater of Caliente Dome. There were explosions reported. There were incandescent rockfalls. Activity also included: fumarolic activity.
Source: Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH)
… [read more] … [show less]
Current Alerts:
Observatory alert level: unavailable or not collected

Pacaya (Guatemala): The Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) reported that unrest continued at Pacaya between 19 November 2025 (local) and 20 November 2025 (local). Gas and vapor plume(s) were reported.
Source: Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH)
… [read more] … [show less]
Current Alerts:
Observatory alert level: unavailable or not collected

Fuego (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 15000 ft (4600 m) altitude or flight level 150 .
The full report is as follows: FQNT VA EMS SEEN IN SAT AND WEBCAM. to 15000 ft (4600 m)
…21 Nov:
The Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) reported that the eruption continued at Fuego between 19 November 2025 (local) and 20 November 2025 (local). Explosions occasionally ejected incandescent material to 100 m above the vent. There were explosions reported. Activity also included: audible sounds (e.g., booms, rumbling), shockwave.
Source: Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH)
… [read more] … [show less]
Current Alerts:
Observatory alert level: unavailable or not collected

Sangay (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 22000 ft (6700 m) altitude or flight level 220 .
The full report is as follows: VA SEEN MOV N IN SAT to 22000 ft (6700 m)
…21 Nov:
The Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN) reported that the eruption continued at Sangay between 19 November 2025 (local) and 20 November 2025 (local). Ash and gas plume(s) were reported. There were seismically detected explosions reported. There were incandescent rockfalls. The alert level remained at „2 – Yellow“ (on a 4-level scale).
Source: Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN)
… [read more] … [show less]
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 .
The full report is as follows: VA SEEN IN SAT to 17000 ft (5200 m)
…21 Nov:
The Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN) reported that the eruption continued at Reventador between 19 November 2025 (local) and 20 November 2025 (local). Ash and gas plume(s) were reported. There were seismically detected explosions reported. The alert level remained at „3 – Orange“ (on a 4-level scale).
Source: Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN)
… [read more] … [show less]
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 19 November 2025 (local) and 20 November 2025 (local). Gas and vapor plume(s) were reported. A total of 8 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)
… [read more] … [show less]
Current Alerts:
Observatory alert level: „Orange“ (level 3 on a 4-level scale)

Planchón-Peteroa (Central Chile and Argentina): (21 Nov) According to the Buenos Aires VAAC steam-and-gas plumes with diffuse ash content at Planchón-Peteroa rose 4.3-4.6 km (14,000-15,000 ft) a.s.l. and drifted SE during 11-13 November. The Servicio Nacional de Geología y Minería (SERNAGEOMIN) also reported that emissions were visible on 13 November.
Specifically, a gas-and-ash plume rose 2 km above the crater rim and drifted NE at 0956 according to the Servicio Geológico Minero Argentino (SEGEMAR); the emissions continued at least through 1010. The Alert Level remained at Yellow (the middle level on a three-color scale). The Sistema y Servicio Nacional de Prevención y Repuesta Ante Desastres (SENAPRED) stated that the communities of Molina (66 WNW), Curicó (68 km NW), Romeral (75 km NW), and Teno (68 km NW) continued to be under a “Preventive Early Warning” (since 18 July 2025) and that a security perimeter 4 km from the craters was in effect.
… [read more] … [show less]
Sources: Servicio Nacional de Geología y Minería (SERNAGEOMIN), Buenos Aires Volcanic Ash Advisory Center (VAAC), Sistema y Servicio Nacional de Prevención y Repuesta Ante Desastres (SENAPRED), Servicio Geológico Minero Argentino (SEGEMAR)
—

Barren Island (Indian Ocean): (21 Nov) The latest satellite imagery from the ESA’s Sentinel-2 indicates the lava entering the ocean.
Over the past two weeks, since the eruption commenced, the lava has been traveling over the northern slope.
… [read more] … [show less]
The lava at the contact with water might start forming a new volcanic edifice, known as littoral cones or a new lava delta.

Volcano Activity Summary for 21 Nov 2025: