Wed, 17 Sep 2025, 16:15
The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Dukono on 16 September 2025 (local). Ash and gas plume(s) rose to a maximum of 400 meters (1,312 feet) above the vent. The alert level remained at "Level 2 - Alert" (on a 4-level scale).
Wed, 17 Sep 2025, 16:15The United States Geological Survey - Alaska Volcano Observatory (USGS-AVO) reported that the eruption continued at Great Sitkin between 15 September 2025 (local) and 16 September 2025 (local). Lava continued to erupt in the summit crater. Satellite images indicated that lava near the vent continued to slowly advance at a rate of approximately 5 meters per day. 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).
Wed, 17 Sep 2025, 16:15
The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Ibu on 16 September 2025 (local). There were 80 explosions reported, with plumes rising to a maximum of 400 meters (1,312 feet) above the vent. The alert level remained at "Level 2 - Alert" (on a 4-level scale).
Wed, 17 Sep 2025, 16:15The United States Geological Survey - Hawaiian Volcano Observatory (USGS-HVO) reported that the eruption continued at Kilauea on 16 September 2025 (local). Moderate glow was observed at the north and south vents in webcam images during the night. 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).
Wed, 17 Sep 2025, 16:15
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that the eruption continued at Kanlaon on 16 September 2025 (local). Plume(s) rose to a maximum of 300 meters (984 feet) above the vent. The alert level remained at "2 - Moderate Level of Volcanic Unrest" (level 2 on a 0â5 level scale).
Wed, 17 Sep 2025, 16:15The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that eruptive activity decreased at Lewotobi (Laki-Laki) on 16 September 2025 (local). The public was advised to maintain a minimum distance of at least 6 km from Lewotobi Laki-laki. The alert level was lowered to "Level 3 - Standby" (on a 4-level scale) on 16 September 2025 at 15:00by CVGHM/PVMBG due to decreased eruptive activity. Gas and vapor plume(s) rose to a maximum of 200 meters (656 feet) above the vent.
Wed, 17 Sep 2025, 16:15
The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Lewotolok on 16 September 2025 (local). There were 214 explosions reported, with plumes rising to a maximum of 500 meters (1,640 feet) above the vent. There was 1 seismically detected rockfall. The alert level remained at "Level 3 - Standby" (on a 4-level scale).
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Wed, 17 Sep 2025, 16:15The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Marapi on 16 September 2025 (local). There was 1 seismically detected explosion reported. The alert level remained at "Level 2 - Alert" (on a 4-level scale).
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Wed, 17 Sep 2025, 16:15
The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Merapi on 16 September 2025 (local). Gas and vapor plume(s) rose to a maximum of 50 meters (164 feet) above the vent. There were 12 hot rockfalls, traveling up to 2,000 m. There were 104 seismically detected rockfalls. The alert level remained at "Level 3 - Standby" (on a 4-level scale).
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Wed, 17 Sep 2025, 16:15The Centro Nacional de Prevención de Desastres (CENAPRED) reported that the eruption continued at Popocatépetl between 15 September 2025 (local) and 16 September 2025 (local). Ash and gas plume(s) were reported. The alert level remained at "Yellow Alert - Phase 2" (level 4 on a 7-level scale).
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Wed, 17 Sep 2025, 16:15
The Instituto GeofÃsico-Escuela Politécnica Nacional (IG-EPN) reported that the eruption continued at Reventador between 15 September 2025 (local) and 16 September 2025 (local). Ash and gas plume(s) rose to a maximum of 800 meters (2,625 feet) above the vent. There were 86 seismically detected explosions reported. There were incandescent rockfalls, descending 1,100 m below the crater. The alert level remained at "3 - Orange" (on a 4-level scale).
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Wed, 17 Sep 2025, 16:15The Centro Vulcanológico Nacional del Instituto GeofÃsico del Perú (CENVUL-IGP) reported that the eruption continued at Sabancaya on 16 September 2025 (local). Gas and vapor plume(s) rose to a maximum of 1,000 meters (3,281 feet) above the vent. The alert level remained at "Orange" (level 3 on a 4-level scale).
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Wed, 17 Sep 2025, 16:15
The Instituto GeofÃsico-Escuela Politécnica Nacional (IG-EPN) reported that the eruption continued at Sangay between 15 September 2025 (local) and 16 September 2025 (local). Ash and gas plume(s) rose to a maximum of 1,200 meters (3,937 feet) above the vent. There were 94 seismically detected explosions reported. The alert level remained at "2 - Yellow" (on a 4-level scale).
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Wed, 17 Sep 2025, 16:15The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Semeru on 16 September 2025 (local). There were 54 seismically detected explosions reported. There were 9 seismically detected rockfalls. The alert level remained at "Level 2 - Alert" (on a 4-level scale).
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Wed, 17 Sep 2025, 16:15
The Japan Meteorological Agency (JMA) reported that the eruption continued at Suwanosejima on 16 September 2025 (local). The alert level remained at "Level 2 - Restriction on proximity to the crater" (on a 5-level scale).
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Wed, 17 Sep 2025, 16:15The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that unrest continued at Bulusan on 16 September 2025 (local). Plume(s) were reported. The alert level remained at "1 - Low Level of Volcanic Unrest" (level 1 on a 0â5 level scale).
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Wed, 17 Sep 2025, 16:15
The Japan Meteorological Agency (JMA) reported that unrest activity increased at Kusatsu-Shiranesan between 15 September 2025 (local) and 16 September 2025 (local). The alert level remained at "Level 2 - Restriction on proximity to the crater" (on a 5-level scale).
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Wed, 17 Sep 2025, 16:15The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that unrest continued at Mayon on 16 September 2025 (local). Plume(s) rose to a maximum of 500 meters (1,640 feet) above the vent. Very faint crater incandescence, observable only through a telescope, was reported. The alert level remained at "1 - Abnormal" (on a 0â5 level scale).
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Wed, 17 Sep 2025, 16:15
The United States Geological Survey - Alaska Volcano Observatory (USGS-AVO) reported that unrest continued at Shishaldin between 15 September 2025 (local) and 16 September 2025 (local). Clear webcam images showed minor steaming at the summit crater. 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). Activity also included: SO2 degassing.
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Wed, 17 Sep 2025, 16:15The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that unrest continued at Taal on 16 September 2025 (local). Plume(s) rose to a maximum of 600 meters (1,969 feet) above the vent. A total of 4 episodes of volcanic tremor were recorded. The continuous tremor episode that began at approximately 0150 on 16 September continued. The alert level remained at "1 - Low-Level Unrest" (on a 0â5 level scale).
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Wed, 17 Sep 2025, 14:15
![Satellite image of Suwanose-jima volcano on 17 Sep 2025]()
Satellite image of Suwanose-jima volcano on 17 Sep 2025
Wed, 17 Sep 2025, 11:30
![Satellite image of Ibu volcano on 17 Sep 2025]()
Satellite image of Ibu volcano on 17 Sep 2025
Wed, 17 Sep 2025, 11:15
Wed, 17 Sep 2025, 11:00
Wed, 17 Sep 2025, 10:45
![Satellite image of Semeru volcano on 17 Sep 2025]()
Satellite image of Semeru volcano on 17 Sep 2025
Wed, 17 Sep 2025, 10:30
