Volcanic activity worldwide 22 Jan 2026: Santiaguito volcano, Fuego, Popocatépetl, Soputan, Tangkub…

Map of today's active volcanoes

Map of today’s active volcanoes

Krasheninnikov (Kamchatka, Russia): (22 Jan) The effusive eruption at the volcano continues.
The lava flow on the eastern flank remains active. In addition, degassing continues from the summit vent.

Canlaon (Central Philippines): The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that the eruption continued at Kanlaon on 21 January 2026 (local). Plume(s) rose to a maximum of 300 m (984 ft) above the vent. The alert level remained at „2 – Moderate Level of Volcanic Unrest“ (on a 0–5 level scale).
Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)
… [read more]

Taal (Luzon, Philippines): The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that the eruption continued at Taal on 21 January 2026 (local). Plume(s) rose to a maximum of 450 m (1,476 ft) above the vent. An episode of continuous tremor, which began at 0900 on 21 January, persisted. 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]

Mayon (Luzon Island, Philippines): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTION AT 20260122/1706Z VA CLD UNKNOWN REPORTED OBS VA DTG:22/1720Z
…22 Jan:
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that the eruption continued at Mayon on 21 January 2026 (local). Eruptive activity was primarily characterized by the collapse of new material associated with dome growth. Lava effusion was reported. Minor, episodic Strombolian activity was observed. There were 317 seismically detected rockfalls. Sulfur dioxide (SO₂) emissions averaged 1,281 tonnes per day on 21 January. The alert level remained at „3 – Increased Tendency Towards Hazardous Eruption“ (on a 0–5 level scale). Activity also included: seismically detected pyroclastic density current(s) (PDCs), volcanic seismicity.
Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)
… [read more]

Telong (northern Sumatra, Indonesia): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Telong, Bur ni on 21 January 2026 (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]

Karangetang (Siau Island, Sangihe Islands, Indonesia): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Karangetang on 21 January 2026 (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]

Raung (East Java): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Raung on 21 January 2026 (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]

Ibu (Halmahera, Indonesia): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Ibu on 21 January 2026 (local). Gas and vapor plume(s) rose to a maximum of 200 m (656 ft) above the vent. There were 124 seismically detected explosions reported. The alert level remained at „Level 2 – Alert“ (on a 4-level scale). Activity also included: felt seismicity.
Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)
… [read more]

Tangkubanparahu (West Java): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) issued a report for Tangkuban Parahu on 21 January 2026 (local). The alert level remained at „Level 1 – Normal“ (on a 4-level scale).
Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)
… [read more]

Sangeang Api (Flores Sea, Indonesia): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Sangeang Api on 21 January 2026 (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]

Lewotobi (Flores): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Lewotobi (Laki-Laki) on 21 January 2026 (local). 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]

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 21 January 2026 (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]

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 21 January 2026 (local). There were 648 seismically detected explosions 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]

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 21 January 2026 (local). There were 2 hot rockfalls, traveling up to 1,800 m. 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]

Semeru (East Java, Indonesia): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: ERUPTION LAST REPORTED AT 22/1634Z EST VA DTG:22/1640Z
…22 Jan:
The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Semeru on 21 January 2026 (local). There were 121 seismically detected explosions reported. There were 4 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]

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 21 January 2026 (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]

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 21 January 2026 (local). Gas and vapor plume(s) rose to a maximum of 250 m (820 ft) above the vent. 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]

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 21 January 2026 (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]

Kerinci (Sumatra): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Kerinci on 21 January 2026 (local). The alert level remained at „Level 2 – Alert“ (on a 4-level scale). Activity also included: felt seismicity.
Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)
… [read more]

Iliwerung (Lesser Sunda Islands): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Iliwerung on 21 January 2026 (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]

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 21 January 2026 (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]

Aoba (Vanuatu): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Wellington warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 and is moving at 15 kts in E direction.
The full report is as follows: CONTINUOUS ERUPTION, ERUPTION AT 20260121/2230Z to 7000 ft (2100 m)

Popocatépetl (Central Mexico): The Centro Nacional de Prevención de Desastres (CENAPRED) reported that the eruption continued at Popocatépetl between 20 January 2026 (local) and 21 January 2026 (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]

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 CDL OBS to 14000 ft (4300 m)
…22 Jan:
The Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) reported that the eruption continued at Santa María between 20 January 2026 (local) and 21 January 2026 (local). Gas and vapor plume(s) rose to a maximum of 300 m (984 ft) above the vent. Crater incandescence was observed during the night and early morning hours. There were explosions reported, occurring at a rate of up to 2 per hour, with plumes rising to a maximum of 800 m (2,625 ft) above the vent. There were incandescent rockfalls.
Source: Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH)
… [read more]

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: ONGOING VA EMS to 14000 ft (4300 m)
…22 Jan:
The Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) reported that the eruption continued at Fuego between 20 January 2026 (local) and 21 January 2026 (local). Gas and vapor plume(s) rose to a maximum of 300 m (984 ft) above the vent. Incandescent material was ejected in pulses up to 200 m above the vent, resulting in the crater area being covered with incandescent rock fragments. There were explosions reported, occurring at a rate of up to 10 per hour, with plumes rising to a maximum of 4,700 m (15,420 ft) above the vent. There were incandescent rockfalls. Activity also included: audible sounds (e.g., booms, rumbling), shockwave.
Source: Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH)
… [read more]

Turrialba (Costa Rica): The Observatorio Vulcanológico y Sismológico de Costa Rica – Universidad Nacional (OVSICORI-UNA) reported that unrest continued at Turrialba between 20 January 2026 (local) and 21 January 2026 (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)
… [read more]

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 between 20 January 2026 (local) and 21 January 2026 (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)
… [read more]

Poas (Costa Rica): The Observatorio Vulcanológico y Sismológico de Costa Rica – Universidad Nacional (OVSICORI-UNA) reported that the eruption continued at Poás between 20 January 2026 (local) and 21 January 2026 (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)
… [read more]

Puracé (Colombia): The Servicio Geológico Colombiano (SGC) reported that the eruption continued at Puracé between 20 January 2026 (local) and 21 January 2026 (local). A total of 1 ash emission event was recorded, with plumes rising to a maximum of 300 m above the crater rim. SGC’s surveillance camera captured the ash emission event at 1239 on 20 January. Satellite observations indicated a slight decrease in the intensity of thermal anomalies within the crater. Seismicity associated with low-magnitude rock-fracturing activity was recorded primarily beneath the Piocollo volcano, at depths between 1 and 2 km. Seismic tremor pulses continued to be recorded at depths of less than 1 km beneath the crater of Puracé. Long-period (LP) seismic events continued to be recorded at depths of less than 1 km beneath the crater of Puracé. Degassing activity was observed from fissures in the craters of the Curiquinga and Piocollo volcanoes. The alert level remained at „Orange“ (level 3 on a 4-level scale). Activity also included: SO2 degassing.
Source: Servicio Geológico Colombiano (SGC)
… [read more]

Sangay (Ecuador): The Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN) reported that eruptive activity increased at Sangay between 20 January 2026 (local) and 21 January 2026 (local). Ash and gas plume(s) rose to a maximum of 1,500 m (4,921 ft) above the vent. Satellite imagery from 20 January indicated a small lava flow descending the SE flank. The extent of the lava flow was confined to the crater area. There were 374 seismically detected explosions reported. Satellite data indicated an increase in sulfur dioxide (SO₂) emissions over the past week. The alert level remained at „2 – Yellow“ (on a 4-level scale). Activity also included: thermal anomaly(ies).
Source: Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN)
… [read more]

Reventador (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 16000 ft (4900 m) altitude or flight level 160 .
The full report is as follows: VA EMS LKLY OBS to 16000 ft (4900 m)
…22 Jan:
The Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN) reported that the eruption continued at Reventador between 20 January 2026 (local) and 21 January 2026 (local). Ash and gas plume(s) rose to a maximum of 1,000 m (3,281 ft) above the vent. There were 94 seismically detected explosions reported. The alert level remained at „3 – Orange“ (on a 4-level scale). Activity also included: thermal anomaly(ies).
Source: Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN)
… [read more]

Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 35000 ft (10700 m) altitude or flight level 350 and is moving at 10 kts in SE direction.
The full report is as follows: PUFF EMISSION to 35000 ft (10700 m)
…22 Jan:
The Centro Vulcanológico Nacional del Instituto Geofísico del Perú (CENVUL-IGP) reported that the eruption continued at Sabancaya between 20 January 2026 (local) and 21 January 2026 (local). Ash, gas, and vapor plume(s) rose to a maximum of 1,000 m (3,281 ft) above the vent. A total of 12 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]

Piton de la Fournaise (La Réunion): The Institut de Physique du Globe de Paris – Observatoire volcanologique du Piton de la Fournaise (IPGP-OVPF) reported that the eruption continued at Fournaise, Piton de la on 21 January 2026 (local). The alert level remained at „Alert 2-1“ (level 2 on a 0–4 level scale).
Source: Institut de Physique du Globe de Paris – Observatoire volcanologique du Piton de la Fournaise (IPGP-OVPF)
… [read more]

Aoba Volcano Volcanic Ash Advisory: CONTINUOUS ERUPTION, ERUPTION AT 20260121/2230Z to 7000 ft (2100 m)

Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Wellington warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 and is moving at 15 kts in E direction.
The full report is as follows:

FVPS01 at 16:07 UTC, 22/01/26 from NZKL
VA ADVISORY
DTG: 20260122/1607Z
VAAC: WELLINGTON
VOLCANO: AMBAE 257030
PSN: S1523 E16750
AREA: VANUATU
SOURCE ELEV: 1496M AMSL
ADVISORY NR: 2026/23
INFO SOURCE: HIMAWARI 9 SAT IMAGE AND GROUND
ERUPTION DETAILS: CONTINUOUS ERUPTION, ERUPTION AT
20260121/2230Z
OBS VA DTG: 22/1607Z
OBS VA CLD: SFC/FL070 S1519 E16748 – S1504 E16822 – S1529
E16824 – S1526 E16745 MOV E 15KT
FCST VA CLD +6 HR: 22/2207Z SFC/FL070 S1520 E16747 – S1505
E16809 – S1520 E16815 – S1527 E16748
FCST VA CLD +12 HR: 23/0407Z SFC/FL070 S1520 E16746 – S1502
E16807 – S1518 E16811 – S1529 E16748
FCST VA CLD +18 HR: 23/1007Z SFC/FL070 S1520 E16746 – S1458
E16810 – S1516 E16816 – S1529 E16748
RMK: VA UNIDENTIFIABLE ON LATEST SATELLITE IMAGERY DUE TO
MET CLOUD, BUT ONGOING LOW-LEVEL ERUPTION POSSIBLE. HEIGHT
AND MOVEMENT BASED ON PRIOR OBSERVATIONS AND MODEL GUIDANCE
NXT ADVISORY: NO LATER THAN 20260122/2207Z=

Santiaguito Volcano Volcanic Ash Advisory: VA CDL OBS to 14000 ft (4300 m)

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:

FVXX24 at 12:27 UTC, 22/01/26 from KNES
VA ADVISORY
DTG: 20260122/1221Z

VAAC: WASHINGTON

VOLCANO: SANTA MARIA 342030
PSN: N1445 W09133

AREA: GUATEMALA

SOURCE ELEV: 12287 FT AMSL

ADVISORY NR: 2026/059

INFO SOURCE: GOES-19. NWP MODELS.

ERUPTION DETAILS: VA CDL OBS

OBS VA DTG: 22/1150Z

OBS VA CLD: SFC/FL140 N1422 W09149 – N1422 W09145
– N1419 W09145 – N1419 W09150 – N1422 W09149 MOV
SW 10KT

FCST VA CLD +6HR: 22/1800Z SFC/FL140 N1446 W09132
– N1444 W09132 – N1425 W09158 – N1431 W09202 –
N1446 W09132

FCST VA CLD +12HR: 23/0000Z SFC/FL140 N1446
W09133 – N1444 W09132 – N1426 W09159 – N1432
W09204 – N1446 W09133

FCST VA CLD +18HR: 23/0600Z NO VA EXP

RMK: VA CLD OBS IN STLT IMG AT APPRX 30NM FM
SUMMIT. NWP MDL GUIDANCE FCSTS GEN SW MOVMT THRU
T+12. …MONAGHAN

NXT ADVISORY: WILL BE ISSUED BY 20260122/1830Z

Fuego Volcano Volcanic Ash Advisory: VA MOVG W to 14000 ft (4300 m)

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:

FVXX23 at 08:27 UTC, 22/01/26 from KNES
VA ADVISORY
DTG: 20260122/0825Z

VAAC: WASHINGTON

VOLCANO: FUEGO 342090
PSN: N1428 W09052

AREA: GUATEMALA

SOURCE ELEV: 12346 FT AMSL

ADVISORY NR: 2026/092

INFO SOURCE: GOES-19. WEBCAM. NWP MODELS.

ERUPTION DETAILS: VA MOVG W

OBS VA DTG: 22/0750Z

OBS VA CLD: SFC/FL140 N1435 W09129 – N1429 W09052
– N1426 W09052 – N1422 W09129 – N1435 W09129 MOV
W 5KT

FCST VA CLD +6HR: 22/1400Z SFC/FL140 N1433 W09135
– N1429 W09052 – N1426 W09052 – N1410 W09129 –
N1433 W09135

FCST VA CLD +12HR: 22/2000Z SFC/FL140 N1429
W09052 – N1427 W09052 – N1409 W09107 – N1423
W09118 – N1429 W09052

FCST VA CLD +18HR: 23/0200Z SFC/FL140 N1431
W09114 – N1429 W09052 – N1427 W09053 – N1416
W09111 – N1431 W09114

RMK: VA EMS OBS IN STLT IMAGERY MOVG APPRX 35NM W
FM SUMMIT. VA FCST THRU T+18 HRS BASED ON A BLEND
OF NWP MDLS AND RCNT STLT IMAGERY. …COVERDALE

NXT ADVISORY: WILL BE ISSUED BY 20260122/1430Z

Lewotolok surges with 524 blasts as Sangay ticks up; Piton de la Fournaise alert raised

Indonesia led today’s activity, with Lewotolok producing 524 seismically detected explosions and ash-and-gas plumes to 500 m. Semeru and Ibu were also busy, while Ecuador’s Sangay was flagged for increased activity. On Reunion, Piton de la Fournaise moved to Alert 2-1 as Popocatepetl and several Philippine volcanoes maintained ongoing unrest.

Indonesia
At Lewotolok, activity surged with 524 seismically detected explosions and ash-and-gas plumes rising up to 500 m. Frequent activity was also noted at Semeru (120 explosions and five rockfalls) and Ibu (117 explosions), while Dukono produced a single explosion. Unrest persisted at Lewotobi with low gas plumes around 50 m, and at several others including Merapi (Level 3 – Standby), Kerinci, Karangetang, Raung, Sangeang Api, Lokon-Empung, Iliwerung, and Awu; two—Talang and Tangkuban Parahu—were at background levels.

Philippines
In the Philippines, Mayon remained at Alert Level 3, while Kanlaon and Taal held at Levels 2 and 1, respectively, amid ongoing unrest.

Mexico
Mexico’s Popocatepetl stayed at Yellow Alert – Phase 2.

South America
In Ecuador, Sangay was flagged for increased activity as Reventador continued erupting. Peru’s Sabancaya registered nine earthquakes linked to internal fluid movement and a thermal anomaly. Colombia’s Purace remained at Orange Alert.

Africa
On Reunion Island, Piton de la Fournaise shifted to Alert 2-1.

Other
In Costa Rica, Poas kept its eruption at Level 2 – Warning, while Rincon de la Vieja and Turrialba showed unrest at the same level.

Source: Smithsonian/USGS GVP Daily Volcanic Activity Report (20 January 2026).

Activity Summary for 20 January 2026

Volcano Country Activity Type Keynotes
Dukono Indonesia Eruption 1 explosion; continuing activity.
Ibu Indonesia Eruption 117 explosions; explosive activity ongoing.
Kanlaon Philippines Eruption Eruption ongoing; Alert Level 2 – Moderate unrest.
Lewotolok Indonesia Eruption 524 explosions; ash and gas to 500 m.
Marapi Indonesia Eruption Eruption ongoing; Alert Level 2.
Mayon Philippines Eruption Eruption ongoing; Alert Level 3 – Increased tendency toward hazardous eruption.
Merapi Indonesia Eruption Gas-and-steam plume to 20 m.
Piton de la Fournaise France Alert status Alert 2-1 in effect.
Popocatepetl Mexico Eruption Eruption ongoing; Yellow Alert – Phase 2.
Poas Costa Rica Eruption Eruption ongoing; Level 2 – Warning.
Purace Colombia Eruption Eruption ongoing; Orange Alert.
Reventador Ecuador Eruption Eruption ongoing; Alert Level 3 – Orange.
Sabancaya Peru Eruption 9 earthquakes; thermal anomaly detected.
Sangay Ecuador Eruption Eruptive activity increased; Alert Level 2 – Yellow.
Semeru Indonesia Eruption 120 explosions; 5 rockfalls.
Taal Philippines Eruption Eruption ongoing; Alert Level 1 – Low-level unrest.
Awu Indonesia Unrest Ongoing unrest; Alert Level 2.
Bur ni Telong Indonesia Unrest Ongoing unrest; Alert Level 2.
Iliwerung Indonesia Unrest Ongoing unrest; Alert Level 2.
Karangetang Indonesia Unrest Ongoing unrest; Alert Level 2.
Kerinci Indonesia Unrest Ongoing unrest; Alert Level 2.
Lewotobi Indonesia Unrest Gas-and-steam plume 50 m; unrest ongoing.
Lokon-Empung Indonesia Unrest Ongoing unrest; Alert Level 2.
Raung Indonesia Unrest Ongoing unrest; Alert Level 2.
Rincon de la Vieja Costa Rica Unrest Ongoing unrest; Level 2 – Warning.
Sangeang Api Indonesia Unrest Ongoing unrest; Alert Level 2.
Turrialba Costa Rica Unrest Ongoing unrest; Level 2 – Warning.
Talang Indonesia Background Background state; Alert Level 1 – Normal.
Tangkuban Parahu Indonesia Background Background state; Alert Level 1 – Normal.