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:
FVXX23 at 14:27 UTC, 21/12/25 from KNES VA ADVISORY DTG: 20251221/1424Z
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 . The full report is as follows:
FVAU01 at 03:31 UTC, 21/12/25 from ADRM VA ADVISORY DTG: 20251221/0336Z VAAC: DARWIN VOLCANO: IBU 268030 PSN: N0129 E12738 AREA: INDONESIA SOURCE ELEV: 1325M AMSL ADVISORY NR: 2025/1423 INFO SOURCE: CVGHM, HIMAWARI-9 ERUPTION DETAILS: VA TO FL070 OBSERVED 21/0030Z MOV E EST VA DTG: 21/0310Z EST VA CLD: SFC/FL070 N0127 E12736 – N0132 E12736 – N0138 E12757 – N0131 E12803 – N0123 E12758 MOV E 15KT FCST VA CLD +6 HR: 21/0910Z SFC/FL070 N0127 E12737 – N0131 E12737 – N0139 E12758 – N0130 E12803 – N0120 E12758 FCST VA CLD +12 HR: 21/1510Z SFC/FL070 N0127 E12736 – N0131 E12736 – N0137 E12758 – N0129 E12803 – N0120 E12758 FCST VA CLD +18 HR: 21/2110Z SFC/FL070 N0129 E12734 – N0135 E12741 – N0129 E12803 – N0115 E12759 – N0114 E12747 RMK: VA IDENTIFIABLE ON RECENT SATELLITE IMAGERY. VA HEIGHT AND MOVEMENT BASED ON H9 SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20251221/0936Z=
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin 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:
FVAU03 at 00:56 UTC, 21/12/25 from ADRM VA ADVISORY DTG: 20251221/0100Z VAAC: DARWIN VOLCANO: DUKONO 268010 PSN: N0142 E12754 AREA: INDONESIA SOURCE ELEV: 1229M AMSL ADVISORY NR: 2025/1067 INFO SOURCE: HIMAWARI-9 ERUPTION DETAILS: VA TO FL070 OBS AT 21/0030Z, EXT E OBS VA DTG: 21/0030Z OBS VA CLD: SFC/FL070 N0141 E12752 – N0144 E12752 – N0152 E12830 – N0143 E12840 – N0135 E12832 MOV E 15KT FCST VA CLD +6 HR: 21/0630Z SFC/FL070 N0141 E12752 – N0144 E12752 – N0154 E12830 – N0143 E12840 – N0132 E12832 FCST VA CLD +12 HR: 21/1230Z SFC/FL070 N0140 E12751 – N0144 E12751 – N0153 E12830 – N0143 E12840 – N0132 E12831 FCST VA CLD +18 HR: 21/1830Z SFC/FL070 N0145 E12751 – N0149 E12806 – N0142 E12826 – N0124 E12827 – N0121 E12805 – N0140 E12750 RMK: VA IDENTIFIABLE ON LATEST SAT IMAGERY. VA HEIGHT AND FORECAST BASED ON SAT IMAGERY AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20251221/0700Z=
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 19 December 2025 (local). The alert level was lowered to „White (no seismic monitoring)“ (on a 5-level scale) on 19 December 2025 at 0000 by EMSD. 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) … [read more] … [show less] Current Alerts: Observatory alert level: „White (no seismic monitoring)“ (on a 5-level scale)
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 19 December 2025 (local). The alert level remained at „Yellow“ (level 2 on a 5-level scale). 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) … [read more] … [show less] Current Alerts: Observatory alert level: „Yellow“ (level 2 on a 5-level scale)
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 19 December 2025 (local). The alert level remained at „Yellow“ (level 2 on a 5-level scale). The aviation alert level remained at „Yellow“ (level 2 on a 4-level scale). Source: Kamchatkan Volcanic Eruption Response Team (KVERT); Laboratory for Seismic and Volcanic Activity Research (ISVA) … [read more] … [show less] Current Alerts: Observatory alert level: „Yellow“ (level 2 on a 5-level scale)
Canlaon (Central Philippines): The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that the eruption continued at Kanlaon on 19 December 2025 (local). Plume(s) rose to a maximum of 75 m (246 ft) above the vent. 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 19 December 2025 (local). Plume(s) rose to a maximum of 500 m (1,640 ft) above the vent. 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)
Mayon (Luzon Island, Philippines): The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that unrest continued at Mayon on 19 December 2025 (local). Plume(s) were reported. There were 6 seismically detected rockfalls. The alert level remained at „1 – Low Level of Volcanic 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 of Volcanic Unrest“ (on a 0–5 level scale)
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 19 December 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)
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 19 December 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)
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 19 December 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)
Ibu (Halmahera, Indonesia): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 . The full report is as follows: VA TO FL070 OBSERVED 20/1437Z MOV E EST VA DTG:20/1520Z to 7000 ft (2100 m) …20 Dec: The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Ibu on 19 December 2025 (local). There were 114 seismically detected explosions reported. Ash and gas plume(s) rose to a maximum of 500 m (1,640 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] … [show less] Current Alerts: Observatory alert level: „Level 2 – Alert“ (on a 4-level scale)
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 19 December 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)
Talang (Sumatra): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Talang on 19 December 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)
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 19 December 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) … [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 19 December 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 19 December 2025 (local). Gas and vapor plume(s) rose to a maximum of 50 m (164 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] … [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 19 December 2025 (local). Gas and vapor plume(s) rose to a maximum of 10 m (33 ft) above the vent. There were 4 hot rockfalls, traveling up to 1,900 m. There were 82 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): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Semeru on 19 December 2025 (local). There were 102 seismically detected explosions reported. Ash and gas plume(s) rose to a maximum of 1,000 m (3,281 ft) above the vent. There were 20 seismically detected rockfalls. Seismically detected flowage events were recorded 1 times. The alert level remained at „Level 3 – Standby“ (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) … [read more] … [show less] Current Alerts: Observatory alert level: „Level 3 – Standby“ (on a 4-level scale)
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 19 December 2025 (local). There was 1 seismically detected explosion 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)
Dukono (Halmahera): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 . The full report is as follows: VA TO FL070 OBS AT 20/0220Z MOV NE EST VA DTG:20/1240Z to 7000 ft (2100 m) …20 Dec: The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Dukono on 19 December 2025 (local). There was 1 seismically detected explosion reported. Ash and gas plume(s) rose to a maximum of 500 m (1,640 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] … [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 19 December 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)
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 19 December 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 19 December 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)
Kilauea (Hawai’i): The United States Geological Survey – Hawaiian Volcano Observatory (USGS-HVO) reported that the eruption continued at Kilauea on 19 December 2025 (local). 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 18 December 2025 (local) and 19 December 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 18 December 2025 (local) and 19 December 2025 (local). 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 18 December 2025 (local) and 19 December 2025 (local). Ash, 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): The Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) reported that the eruption continued at Santa María between 18 December 2025 (local) and 19 December 2025 (local). There were explosions reported, occurring at a rate of up to 3 per hour. Ash and gas plume(s) rose to a maximum of 900 m (2,953 ft) above the vent. Crater glow was observed during the early morning and nighttime hours. 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 18 December 2025 (local) and 19 December 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 14000 ft (4300 m) altitude or flight level 140 . The full report is as follows: LGT VA EMS to 14000 ft (4300 m) …20 Dec: The Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) reported that the eruption continued at Fuego between 18 December 2025 (local) and 19 December 2025 (local). There were explosions reported, occurring at a rate of up to 10 per hour. Ash and gas plume(s) rose to a maximum of 1,037 m (3,402 ft) above the vent. Some explosions ejected incandescent material up to 200 m above the crater rim. 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
Turrialba (Costa Rica): The Observatorio Vulcanológico y Sismológico de Costa Rica – Universidad Nacional (OVSICORI-UNA) reported that unrest continued at Turrialba on 19 December 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) … [read more] … [show less] 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 19 December 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) … [read more] … [show less] 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 19 December 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) … [read more] … [show less] Current Alerts: Observatory alert level: „Level 2 – Warning“ (on a 0–4 level scale)
Puracé (Colombia): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 18000 ft (5500 m) altitude or flight level 180 . The full report is as follows: ONGOING VA EMS. to 18000 ft (5500 m) …20 Dec: The Servicio Geológico Colombiano (SGC) reported that the eruption continued at Puracé on 19 December 2025 (local). The alert level remained at „Orange“ (level 3 on a 4-level scale). Source: Servicio Geológico Colombiano (SGC) … [read more] … [show less] Current Alerts: Observatory alert level: „Orange“ (level 3 on a 4-level scale)
Sangay (Ecuador): The Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN) reported that the eruption continued at Sangay between 18 December 2025 (local) and 19 December 2025 (local). 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 14000 ft (4300 m) altitude or flight level 140 . The full report is as follows: POSSIBLE ONGOING VA EMS. to 14000 ft (4300 m) …20 Dec: The Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN) reported that the eruption continued at Reventador between 18 December 2025 (local) and 19 December 2025 (local). 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 18 December 2025 (local) and 19 December 2025 (local). The alert level remained at „Orange“ (level 3 on a 4-level scale). 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)
