Map of today's active volcanoesShiveluch (Kamchatka): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 16000 ft (4900 m) altitude or flight level 160 and is moving at 5 kts in W direction.The full report is as follows: VA EMISSIONS CONTINUING OBS VA DTG:18/1720Z to 16000 ft (4900 m)...18 Sep:The Kamchatkan Volcanic Eruption Response Team (KVERT) reported that the eruption continued at Sheveluch on 17 September 2025 (local). There were explosions reported, with plumes rising to a maximum of 717 m (2,352 ft) above the vent. 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 collectedKarangetang (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 17 September 2025 (local). There was 1 seismically detected rockfall. 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 17 September 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 LAST REP AT 17/1535Z MOV NW EST VA DTG:18/1040Z to 7000 ft (2100 m)Ranakah (Flores): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest activity decreased at Ranakah on 17 September 2025 (local). The alert level was lowered to "Level 1 - Normal" (on a 4-level scale) on 17 September 2025 at 1100 by CVGHM/PVMBG following decreased deep volcanic seismicity and no observed changes to lava dome morphology.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 1 - Normal" (on a 4-level scale)Lewotolo (Lesser Sunda Islands): (18 Sep) 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 REP AT 18/0543Z MOV WNW EST VA DTG:18/0550Z to 7000 ft (2100 m)Dempo (Sumatra): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Dempo on 17 September 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)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 17 September 2025 (local). Gas and vapor plume(s) rose to a maximum of 150 m (492 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 17 September 2025 (local). Gas and vapor plume(s) rose to a maximum of 188 m (617 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)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 17 September 2025 (local). Gas and vapor plume(s) rose to a maximum of 100 m (328 ft) above the vent. Minor glow was observed at the vent in webcam images during the night. 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)Iliamna (Cook Inlet (SW Alaska)): (18 Sep) Volcanic Ash Advisory Center Anchorage (VAAC) issued the following report: NO ERUPTION. VA NOT IDENTIFIABLE FM SATELLITE DATA.Popocatépetl (Central Mexico): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 20000 ft (6100 m) altitude or flight level 200 .The full report is as follows: VA EMS OBS to 20000 ft (6100 m)Santiaguito (Guatemala): The Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) reported that the eruption continued at Santa María between 16 September 2025 (local) and 17 September 2025 (local). Gas and vapor plume(s) rose to a maximum of 500 m (1,640 ft) above the vent. There were explosions reported, occurring at a rate of up to 3 per hour, with plumes rising to a maximum of 800 m (2,625 ft) above the vent.Source: Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) ... [read more] ... [show less] Current Alerts:Observatory alert level: unavailable or not collectedPacaya (Guatemala): The Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) reported that unrest continued at Pacaya between 16 September 2025 (local) and 17 September 2025 (local). Gas 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 collectedFuego (Guatemala): The Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) reported that the eruption continued at Fuego between 16 September 2025 (local) and 17 September 2025 (local). Explosions occasionally ejected incandescent material up to 150 meters above the vent. Some explosions were accompanied by faint rumbling sounds. There were explosions reported, occurring at a rate of up to 11 per hour, with plumes rising to a maximum of 1,037 m (3,402 ft) above the vent.Source: Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) ... [read more] ... [show less] Current Alerts:Observatory alert level: unavailable or not collectedTurrialba (Costa Rica): The Observatorio Vulcanológico y Sismológico de Costa Rica - Universidad Nacional (OVSICORI-UNA) reported that unrest continued at Turrialba on 17 September 2025 (local). Vigorous degassing activity was observed at the SW inner wall of the active crater. 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 17 September 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 17 September 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)Nevado del Ruiz (Colombia): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: PSBL LGT VA EMSangay (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 20000 ft (6100 m) altitude or flight level 200 .The full report is as follows: CONT VA EM to 20000 ft (6100 m)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 and is moving at 15 kts in W direction.The full report is as follows: CONT VA EMS OBS to 14000 ft (4300 m)