Etna (Sicily, Italy): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Toulouse warned of a volcanic ash plume rising to an estimated 15000 ft (4600 m), or flight level 150, and moving at 10 kts in S direction.
Original VAAC bulletin: ash plume to 15,000 ft (4,600 m) as of Sep 5, 10:00 UTC
Ibu (Halmahera, Indonesia): A ground report indicated a volcanic ash eruption at Ibu at 08:13 UTC on September 5. As of 09:40 UTC, ash emissions were estimated and moving northwest, but ash was not identifiable on satellite imagery due to meteorological clouds.
Original VAAC bulletin: Ibu Volcanic Ash Advisory
Sinabung (Sumatra, Indonesia): (5 Sep) A volcanic ash advisory was issued for Sinabung. Ash was previously observed up to FL140 moving east at 04:30 UTC on September 5, 2026, but recent satellite data does not identify any ash cloud and the advisory has been terminated.
Original VAAC bulletin: Sinabung Volcanic Ash Advisory
Lewotolo (Lesser Sunda Islands): (5 Sep) Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 6000 ft (1800 m), or flight level 060.
Original VAAC bulletin: ash plume to 6,000 ft (1,800 m) as of Sep 5, 07:30 UTC
Krakatau (Sunda Strait, Indonesia): The recent strong paroxysm episode at the volcano was also captured from space.
The Sentinel-2 satellite detected the tall ash plume and large amounts of floating pumice stones.
…5 Sep:
A major eruptive episode has occurred (or is still occurring) at the volcano. Local residents from nearby coastal areas reported powerful explosions and tall lava fountains, eruption lightning visible from afar and a dense column of ash. This paroxysm likely marks the strongest activity since the eruption that led to the collapse of the previous cone of Anak Krakatau in Dec 2018.
The VAAC center in Darwin estimates an ash plume height of 50,000 ft (15 km).
… [read more]
Semeru (East Java, Indonesia): (5 Sep) Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 15000 ft (4600 m), or flight level 150.
Original VAAC bulletin: ash plume to 15,000 ft (4,600 m) as of Sep 4, 23:40 UTC
Aoba (Vanuatu): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Wellington warned of a volcanic ash plume rising to an estimated 7000 ft (2100 m), or flight level 070, and moving at 10 kts in SE direction.
Original VAAC bulletin: ash plume to 7,000 ft (2,100 m) as of Sep 5, 20:43 UTC
Fuego (Guatemala): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Washington warned of a volcanic ash plume rising to an estimated 16000 ft (4900 m), or flight level 160, and moving at 10 kts in W direction.
Original VAAC bulletin: ash plume to 16,000 ft (4,900 m) as of Sep 5, 20:00 UTC
Puracé (Colombia): The Volcanic Ash Advisory Center (VAAC) Washington issued the following bulletin.
Original VAAC bulletin: VA EM LKLY
Reventador (Ecuador): A possible light volcanic ash emission from Reventador is indicated, but no ash plume was observed due to cloud cover as of 5 September 2026, 10:50 UTC. Forecasts suggest west-northwest movement of any ash cloud through the next 12 hours.
Original VAAC bulletin: Reventador Volcanic Ash Advisory
