Mayon (Luzon Island, Philippines): An eruption was reported at Mayon at 17:20 UTC on 2 October 2026, but the ash cloud was not identifiable in satellite data as of 17:30 UTC. No forecast information is available.
Original VAAC bulletin: ash cloud reported, height unknown as of 2 Oct 2026, 17:30 UTC
Ibu (Halmahera, Indonesia): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 7000 ft (2100 m), or flight level 070, and moving at 15 kts in E direction.
Original VAAC bulletin: ash plume to 7,000 ft (2,100 m) as of Oct 2, 15:40 UTC
Lewotolo (Lesser Sunda Islands): 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, and moving at 15 kts in W direction.
Original VAAC bulletin: ash plume to 6,000 ft (1,800 m) as of Oct 2, 20:33 UTC
Semeru (East Java, Indonesia): Intermittent eruptions were last reported at Semeru at 02 Oct 2026, 10:23 UTC. Ash movement toward the northwest at 5 knots is estimated based on ground reports and model guidance; ash height is not specified.
Original VAAC bulletin: Semeru Volcanic Ash Advisory
Dukono (Halmahera): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 7000 ft (2100 m), or flight level 070, and moving at 15 kts in E direction.
Original VAAC bulletin: ash plume to 7,000 ft (2,100 m) as of Oct 2, 13:10 UTC
Santiaguito (Guatemala): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Washington warned of a volcanic ash plume rising to an estimated 14000 ft (4300 m), or flight level 140.
Original VAAC bulletin: ash plume to 14,000 ft (4,300 m) as of Oct 2, 14:10 UTC
Fuego (Guatemala): Continuous volcanic ash emissions were observed at Fuego, but no ash plume height was reported as of the latest advisory. Forecasts indicate ash movement to the northeast, shifting north within 12 hours.
Original VAAC bulletin: Fuego Volcanic Ash Advisory
Puracé (Colombia): The Volcanic Ash Advisory Center (VAAC) Washington issued the following bulletin.
Original VAAC bulletin: PSBL VA EMS
Sangay (Ecuador): Possible volcanic ash emissions from Sangay are indicated, but no ash plume or height was observed as of the latest report. Forecasts suggest potential ash movement west-southwest, shifting to west-northwest within 18 hours.
Original VAAC bulletin: Sangay Volcanic Ash Advisory
Reventador (Ecuador): Ongoing volcanic ash emissions are reported at Reventador. No observed ash plume height is available; forecasts indicate continued emissions with no change expected in wind conditions over the next 18 hours.
Original VAAC bulletin: Reventador Volcanic Ash Advisory
