Satellite image of Krakatau volcano on 23 Aug 2026
Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 9000 ft (2700 m), or flight level 090. Original VAAC bulletin:
FVAU05 at 01:18 UTC, 23/08/26 from ADRM VA ADVISORY DTG: 20260823/0127Z VAAC: DARWIN VOLCANO: KRAKATAU 262000 PSN: S0606 E10525 AREA: INDONESIA SOURCE ELEV: 155M AMSL ADVISORY NR: 2026/127 INFO SOURCE: HIMAWARI-9 ERUPTION DETAILS: VA TO FL090 OBS AT 23/0100Z, MOV SW OBS VA DTG: 23/0100Z OBS VA CLD: SFC/FL090 S0610 E10535 - S0704 E10447 - S0601 E10411 - S0553 E10525 MOV SW 05KT FCST VA CLD +6 HR: 23/0700Z SFC/FL090 S0610 E10535 - S0745 E10530 - S0759 E10438 - S0643 E10320 - S0542 E10356 - S0554 E10526 FCST VA CLD +12 HR: 23/1300Z SFC/FL090 S0611 E10535 - S0758 E10449 - S0644 E10318 - S0546 E10320 - S0457 E10406 - S0551 E10530 FCST VA CLD +18 HR: 23/1900Z SFC/FL090 S0609 E10538 - S0747 E10507 - S0758 E10406 - S0635 E10257 - S0528 E10310 - S0459 E10410 - S0551 E10527 RMK: CONTINUOUS VA ERUPTION IDENTIFIABLE ON CURRENT SATELLITE IMAGERY. HEIGHT AND MOVEMENT BASED ON HIMAWARI-9 SATELLITE IMAGERY AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260823/0727Z=
Kanlaon (Central Philippines): An eruption was reported at Kanlaon on 22 August 2026 at 14:56 UTC, but the ash cloud height was unknown as of the latest observation at 15:00 UTC. No volcanic ash was identifiable from satellite data, and forecasts are not available. Original VAAC bulletin:ash plume height unknown as of 22 Aug 2026, 15:00 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. Original VAAC bulletin:ash plume to 7,000 ft (2,100 m) as of Aug 22, 19:50 UTC
Lewotobi (Flores): 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. Original VAAC bulletin:ash plume to 7,000 ft (2,100 m) as of Aug 22, 10:40 UTC
Krakatau (Sunda Strait, Indonesia): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 9000 ft (2700 m), or flight level 090. Original VAAC bulletin:ash plume to 9,000 ft (2,700 m) as of Aug 22, 13:00 UTC
Semeru (East Java, Indonesia): 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 Aug 22, 15:40 UTC
Dukono (Halmahera): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 8000 ft (2400 m), or flight level 080. Original VAAC bulletin:ash plume to 8,000 ft (2,400 m) as of Aug 22, 16:20 UTC
Fuego (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, and moving at 10 kts in W direction. Original VAAC bulletin:ash plume to 14,000 ft (4,300 m) as of Aug 22, 17:00 UTC
Puracé (Colombia): Possible volcanic ash emissions were reported for Puracé, but no ash plume height was observed as of the latest advisory. Forecasts indicate potential northwest movement of ash through 22 August 2026, 16:30 UTC. Original VAAC bulletin:Puracé Volcanic Ash Advisory
Reventador (Ecuador): Volcanic ash emissions are considered likely at Reventador based on webcam observations as of 22 August 2026, 10:10 UTC. Satellite detection was hindered by weather clouds; model forecasts suggest ash movement toward the northwest. Original VAAC bulletin:Reventador Volcanic Ash Advisory
