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Map of today’s active volcanoes

Krasheninnikov (Kamchatka, Russia): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 8000 ft (2400 m) altitude or flight level 080 and is moving at 30 kts in SE direction.
The full report is as follows: VA EMISSIONS CONTINUING OBS VA DTG:23/1720Z to 8000 ft (2400 m)

Suwanose-jima (Ryukyu Islands): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTED AT 20250923/1505Z FL060 STNR OBS VA DTG:23/1500Z

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 MOV SE LAST REPORTED AT 23/1543Z to 7000 ft (2100 m)

Lewotobi (Flores): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 10000 ft (3000 m) altitude or flight level 100 .
The full report is as follows: VA TO FL100 MOV W LAST REP AT 23/0914Z EST VA DTG:23/1550Z to 10000 ft (3000 m)
…23 Sep:
The explosive activity from the volcano continues.
Yet another eruptions appeared from atop the summit over the past few days. Near-constant, at roughly regular intervals of 5 to 8 hours per day, above-average vulcanian-type explosions generated grey ash plumes that reached 7,000 ft (2,100 m) – 8,00 ft (2,500 m) altitude and drifted into west.
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The volcano observatory reported a seismic signal with a maximum amplitude of 3.7 mm and a duration of 62 seconds this morning.
The alert level for the volcano remains at Level 3 (Siaga).

…23 Sep:
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 22 September 2025 (local). There was 1 seismically detected rockfall. There was 1 explosion reported, with plumes rising to a maximum of 600 m (1,969 ft) above the vent. There was 1 explosion reported, with plumes rising to a maximum of 800 m (2,625 ft) above the vent. There was 1 explosion reported, with plumes rising to a maximum of 1,000 m (3,281 ft) above the vent. There was 1 explosion reported, with plumes rising to a maximum of 2,000 m (6,562 ft) above the vent. There was 1 explosion reported, with plumes rising to a maximum of 1,600 m (5,249 ft) above the vent. There was 1 explosion reported, with plumes rising to a maximum of 1,500 m (4,921 ft) above the vent. There was 1 explosion reported, with plumes rising to a maximum of 500 m (1,640 ft) above the vent. There was 1 explosion reported, with plumes rising to a maximum of 1,200 m (3,937 ft) above the vent. There was 1 seismically detected explosion reported. There was 1 explosion reported, with plumes rising to a maximum of 3,000 m (9,843 ft) above the vent. There were 2 seismically detected explosions reported. There was 1 explosion reported, with plumes rising to a maximum of 200 m (656 ft) above the vent. The alert level remained at „Level 4 – Caution“ (on a 4-level scale).
Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)
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Current Alerts:
Observatory alert level: „Level 4 – Caution“ (on a 4-level scale)

Lewotolo (Lesser Sunda Islands): (23 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 OBS AT 23/0740Z MOV NW OBS VA DTG:23/0740Z to 7000 ft (2100 m)

Semeru (East Java, Indonesia): (23 Sep) 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 23/0210Z MOV W OBS VA DTG:23/0210Z to 15000 ft (4600 m)

Marapi (Western Sumatra, Indonesia): (22 Sep) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 12000 ft (3700 m) altitude or flight level 120 and is moving at 05 kts in W direction.
The full report is as follows: GROUND REPORT OF ERUPTION OF UNKNOWN HEIGHT AT 22/1959Z to 12000 ft (3700 m)

Kilauea (Hawai’i): The United States Geological Survey – Hawaiian Volcano Observatory (USGS-HVO) reported that the eruption continued at Kilauea on 22 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)
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Current Alerts:
Observatory alert level: „Watch“ (level 3 on a 4-level scale)

Katmai (Alaska Peninsula, USA): Volcanic Ash Advisory Center Anchorage (VAAC) issued the following report: VA OBSC BY MET CLOUD.

Shishaldin (Aleutian Islands, Alaska): The United States Geological Survey – Alaska Volcano Observatory (USGS-AVO) reported that unrest continued at Shishaldin between 21 September 2025 (local) and 22 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)
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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 21 September 2025 (local) and 22 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 – Alaska Volcano Observatory (USGS-AVO)
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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 20000 ft (6100 m) altitude or flight level 200 .
The full report is as follows: NEW VA EMS to 20000 ft (6100 m)

Fuego (Guatemala): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: FRQNT VA EM

Sangay (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: PSBL LGT VA EM

Reventador (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EMS PSBL