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 13000 ft (4000 m) altitude or flight level 130 and is moving at 10 kts in E direction.The full report is as follows: POSS ERUPTION OBS AT 20250920/0820Z FL130 EXTD E OBS VA DTG:20/0850Z to 13000 ft (4000 m)...19 Sep:The Kamchatkan Volcanic Eruption Response Team (KVERT) reported that the eruption continued at Sheveluch on 18 September 2025 (local). There were explosions reported, with plumes rising to a maximum of 1,717 m (5,633 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 collectedAsama (Honshu): The Japan Meteorological Agency (JMA) reported that unrest continued at Asamayama between 15 September 2025 (local) and 19 September 2025 (local). The alert level remained at "Level 2 - Restriction on proximity to the crater" (on a 5-level scale).Source: Japan Meteorological Agency (JMA) ... [read more] ... [show less] Current Alerts:Observatory alert level: "Level 2 - Restriction on proximity to the crater" (on a 5-level scale)Akan (Hokkaido): The Japan Meteorological Agency (JMA) reported that unrest activity increased at Akan on 19 September 2025 (local). The alert level remained at "Level 2 - Restriction on proximity to the crater" (on a 5-level scale).Source: Japan Meteorological Agency (JMA) ... [read more] ... [show less] Current Alerts:Observatory alert level: "Level 2 - Restriction on proximity to the crater" (on a 5-level scale)Kirishima (Kyushu): The Japan Meteorological Agency (JMA) reported that the eruption continued at Kirishimayama between 15 September 2025 (local) and 19 September 2025 (local). 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)Kusatsu-Shirane (Honshu): The Japan Meteorological Agency (JMA) reported that unrest activity increased at Kusatsu-Shiranesan on 19 September 2025 (local). The alert level remained at "Level 2 - Restriction on proximity to the crater" (on a 5-level scale).Source: Japan Meteorological Agency (JMA) ... [read more] ... [show less] Current Alerts:Observatory alert level: "Level 2 - Restriction on proximity to the crater" (on a 5-level scale)Iwate (Honshu, Japan): The Japan Meteorological Agency (JMA) reported that unrest continued at Iwatesan between 12 September 2025 (local) and 19 September 2025 (local). The alert level remained at "Level 2 - Restriction on proximity to the crater" (on a 5-level scale).Source: Japan Meteorological Agency (JMA) ... [read more] ... [show less] Current Alerts:Observatory alert level: "Level 2 - Restriction on proximity to the crater" (on a 5-level scale)Kuchinoerabu-jima (Ryukyu Islands): The Japan Meteorological Agency (JMA) reported that unrest activity decreased at Kuchinoerabujima between 12 September 2025 (local) and 19 September 2025 (local). The alert level was lowered to "Level 1 - Potential for increased activity" (on a 5-level scale) on 12 September 2025 at 1500 by JMA due to decreased shallow volcanic seismicity.Source: Japan Meteorological Agency (JMA) ... [read more] ... [show less] Current Alerts:Observatory alert level: "Level 1 - Potential for increased activity" (on a 5-level scale)Sakurajima (Kyushu, Japan): The Japan Meteorological Agency (JMA) reported that the eruption continued at Aira between 15 September 2025 (local) and 19 September 2025 (local). Incandescence was observed at Minamidake Crater in overnight high-sensitivity surveillance camera images during 15–19 September. Very small eruptions were occasionally recorded at Minamidake Crater. 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): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTED AT 20250920/1518Z FL070 EXTD NE OBS VA DTG:20/1510Z...20 Sep:The Japan Meteorological Agency (JMA) reported that the eruption continued at Suwanosejima on 19 September 2025 (local). The alert level remained at "Level 2 - Restriction on proximity to the crater" (on a 5-level scale).Source: Japan Meteorological Agency (JMA) ... [read more] ... [show less] Current Alerts:Observatory alert level: "Level 2 - Restriction on proximity to the crater" (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 September 2025 (local). Plume(s) rose to a maximum of 600 m (1,969 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 unrest continued at Taal on 19 September 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) ... [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 September 2025 (local). The alert level remained at "1 - Abnormal" (on a 0–5 level scale).Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS) ... [read more] ... [show less] Current Alerts:Observatory alert level: "1 - Abnormal" (on a 0–5 level scale)Bulusan (Luzon Island, Philippines): The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that unrest continued at Bulusan on 19 September 2025 (local). The alert level remained at "1 - Low Level of Volcanic Unrest" (level 1 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" (level 1 on a 0–5 level scale)Karangetang (Siau Island, Sangihe Islands, Indonesia): (19 Sep) The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Karangetang on 18 September 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)Raung (East Java): (19 Sep) The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Raung on 18 September 2025 (local). Gas and vapor plume(s) rose to a maximum of 400 m (1,312 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)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 REP AT 20/1142Z MOV NE EST VA DTG:20/1150Z to 7000 ft (2100 m)...20 Sep:The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Ibu on 19 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)Sinabung (Sumatra, Indonesia): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Sinabung on 19 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)Dieng (Central Java): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Dieng Volcanic Complex on 19 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)Lewotobi (Flores): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin 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: VA TO FL150 OBS AT 20/1340Z MOV W OBS VA DTG:20/1340Z to 15000 ft (4600 m)...20 Sep:The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that eruptive activity increased at Lewotobi (Laki-Laki) on 19 September 2025 (local). On 19 September, a series of 12 explosive eruptions occurred, beginning at 1432 and intensifying into the night. Explosive activity was preceded by a gradual inflationary deformation trend over the past 7 days and an increase in the number of low-frequency (LF) earthquakes. The first eruption was recorded at 1432, producing an ash plume that reached 1,000 m above the vent. At 2100, CVGHM/PVMBG raised the alert level to "Level 4 - Caution" (on a 4-level scale) due to increasing eruptive activity. The most prolonged activity occurred in the evening, particularly between 2158 and 2343. Ash columns ranged from 800–6,000 m above the vent, with the tallest plume observed at 2246. Based on seismic data, eruption durations ranged from 1 minute (60 seconds) to approximately 17 minutes (1,027 seconds), with varying intensities. The public was advised to maintain a minimum distance of at least 6 km from Lewotobi Laki-Laki, except in the southwest-northeast direction, where the distance is 7 km.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)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 September 2025 (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] ... [show less] Current Alerts:Observatory alert level: "Level 3 - Standby" (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 September 2025 (local). Gas and vapor plume(s) rose to a maximum of 50 m (164 ft) above the vent. There were 50 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)Bromo (East Java, Indonesia): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Tengger Caldera on 19 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)Semeru (East Java, Indonesia): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: ERUPTION LAST REPORTED AT 20/0952Z EST VA DTG:20/1000Z...20 Sep:The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Semeru on 19 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)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 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)Dempo (Sumatra): (19 Sep) The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Dempo on 18 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)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 19 September 2025 (local). There were 6 explosions reported, with plumes rising to a maximum of 800 m (2,625 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)Awu (Sulawesi & Sangihe Islands): (19 Sep) The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Awu on 18 September 2025 (local). Gas and vapor plume(s) rose to a maximum of 100 m (328 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): (19 Sep) The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Kerinci on 18 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)Lokon-Empung (North Sulawesi, Indonesia): (19 Sep) The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Lokon-Empung on 18 September 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 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)Kilauea (Hawai'i): The United States Geological Survey - Hawaiian Volcano Observatory (USGS-HVO) reported that eruptive activity increased at Kilauea on 19 September 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 September 2025 (local) and 19 September 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 September 2025 (local) and 19 September 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): 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: OCNL VA EMS. to 22000 ft (6700 m)...20 Sep:The Centro Nacional de Prevención de Desastres (CENAPRED) reported that the eruption continued at Popocatépetl between 18 September 2025 (local) and 19 September 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): (19 Sep) The Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) reported that the eruption continued at Santa María between 17 September 2025 (local) and 18 September 2025 (local). Gas and vapor plume(s) rose to a maximum of 300 m (984 ft) above the vent. Incandescence was observed at Caliente Dome during the night and early morning. There were explosions reported, occurring at a rate of up to 3 per hour, with plumes rising to a maximum of 900 m (2,953 ft) above the vent. Ashfall was reported in San Marcos Palajunoj (8 km SW). There were incandescent rockfalls.Source: Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) ... [read more] ... [show less] Current Alerts:Observatory alert level: unavailable or not collectedPacaya (Guatemala): (19 Sep) The Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) reported that unrest continued at Pacaya between 17 September 2025 (local) and 18 September 2025 (local). Gas and vapor plume(s) rose to a maximum of 150 m (492 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 collectedFuego (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: OCNL VA EMS. to 15000 ft (4600 m)...19 Sep:The Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) reported that the eruption continued at Fuego between 17 September 2025 (local) and 18 September 2025 (local). Gas and vapor plume(s) rose to a maximum of 400 m (1,312 ft) above the vent. There were explosions reported, occurring at a rate of up to 8 per hour, with plumes rising to a maximum of 937 m (3,074 ft) above the vent. Fine ashfall was reported in Panimaché Uno and Panimaché Dos (8 km SW), Morelia (10 km SW), and Santa Sofía (15 km SW). There were incandescent rockfalls.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): (19 Sep) The Observatorio Vulcanológico y Sismológico de Costa Rica - Universidad Nacional (OVSICORI-UNA) reported that unrest continued at Turrialba between 17 September 2025 (local) and 18 September 2025 (local). 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): (19 Sep) The Observatorio Vulcanológico y Sismológico de Costa Rica - Universidad Nacional (OVSICORI-UNA) reported that unrest continued at Rincón de la Vieja between 17 September 2025 (local) and 18 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): (19 Sep) The Observatorio Vulcanológico y Sismológico de Costa Rica - Universidad Nacional (OVSICORI-UNA) reported that the eruption continued at Poás between 17 September 2025 (local) and 18 September 2025 (local). Ash, gas, and vapor plume(s) were reported. 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)Sangay (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: PSBL LGT VA EM...20 Sep:The Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN) reported that the eruption continued at Sangay between 18 September 2025 (local) and 19 September 2025 (local). Ash and gas plume(s) rose to a maximum of 2,000 m (6,562 ft) above the vent. There were 101 seismically detected explosions reported. There were incandescent rockfalls, descending 200 m below the crater. 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): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: PSBL VA EMS....20 Sep:The Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN) reported that the eruption continued at Reventador between 18 September 2025 (local) and 19 September 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 September 2025 (local) and 19 September 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)