Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Washington warned of a volcanic ash plume rising to an estimated 18000 ft (5500 m), or flight level 180. Original VAAC bulletin:
FVXX23 at 01:22 UTC, 05/09/26 from KNES VA ADVISORY DTG: 20260905/0119Z
Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 50000 ft (15200 m), or flight level 500. Original VAAC bulletin:
FVAU04 at 00:31 UTC, 05/09/26 from ADRM VA ADVISORY DTG: 20260905/0030Z VAAC: DARWIN VOLCANO: KRAKATAU 262000 PSN: S0606 E10525 AREA: INDONESIA SOURCE ELEV: 155M AMSL ADVISORY NR: 2026/171 INFO SOURCE: HIMAWARI-9 CVGHM ERUPTION DETAILS: VA TO FL500 MOV W, VA TO FL200 MOV S TO ESE OBS VA DTG: 05/0010Z OBS VA CLD: SFC/FL200 S0552 E10510 - S0552 E10605 - S0643 E10655 - S0732 E10559 - S0654 E10419 MOV SE 10KT SFC/FL500 S0623 E10548 - S0736 E10204 - S0702 E10046 - S0529 E10047 - S0448 E10304 - S0540 E10548 MOV W 40KT FCST VA CLD +6 HR: 05/0610Z SFC/FL500 S0625 E10548 - S0910 E09757 - S0604 E09634 - S0347 E09909 - S0347 E10221 - S0517 E10548 SFC/FL200 S0546 E10511 - S0622 E10737 - S0754 E10738 - S0841 E10529 - S0714 E10347 FCST VA CLD +12 HR: 05/1210Z SFC/FL500 S0624 E10547 - S1008 E09511 - S0543 E09354 - S0327 E09745 - S0345 E10220 - S0515 E10548 SFC/FL200 S0544 E10525 - S0646 E10831 - S0836 E10746 - S0855 E10457 - S0709 E10250 FCST VA CLD +18 HR: 05/1810Z SFC/FL500 S0624 E10548 - S1039 E09459 - S0852 E09220 - S0501 E09253 - S0327 E09745 - S0346 E10222 - S0515 E10548 SFC/FL200 S0543 E10518 - S0647 E10830 - S0830 E10821 - S0928 E10521 - S0717 E10226 RMK: CONTINUOUS VA TO FL500 IDENTIFIABLE ON SAT IMAGE MOV W. CONTINUOUS VA TO FL200 MOV S TO ESE. HEIGHT AND MOV BASED ON SATELLITE IMAGERY AND FCST BASED ON DISPERSION MODELS. NXT ADVISORY: NO LATER THAN 20260905/0230Z=
On 9/4/2026 11:52:30 PM, an earthquake occurred in Russia potentially affecting 6 thousand in MMI>=III. The earthquake had Magnitude 5.5M, Depth:36.429km.
Etna (Sicily, Italy): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Toulouse warned of a volcanic ash plume rising to an estimated 12000 ft (3700 m), or flight level 120, and moving at 15 kts in S direction. Original VAAC bulletin:ash plume to 12,000 ft (3,700 m) as of Sep 4, 13:00 UTC
Sinabung (Sumatra, Indonesia): Volcanic ash was observed up to flight level FL140 moving east at 04/0430 UTC, with the ash cloud estimated as of 04/1630 UTC. The latest satellite image did not identify ash due to meteorological cloud; height and forecast are based on satellite and model guidance. Original VAAC bulletin:Sinabung Volcanic Ash Advisory
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 10 kts in W direction. Original VAAC bulletin:ash plume to 6,000 ft (1,800 m) as of Sep 4, 19:40 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 45000 ft (13700 m), or flight level 450. Original VAAC bulletin:ash plume to 45,000 ft (13,700 m) as of Sep 4, 16:30 UTC
Semeru (East Java, Indonesia): Volcanic ash was last reported up to FL150 at 04/1053Z, with ash expected to be moving southeast at 10 knots as of 04/1140Z. The latest satellite imagery could not identify ash due to meteorological clouds, but ongoing emissions are expected. Original VAAC bulletin:Semeru Volcanic Ash Advisory
Dukono (Halmahera): (4 Sep) 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 Sep 4, 01:00 UTC
Fuego (Guatemala): Ongoing volcanic ash emissions are reported at Fuego as of September 4, 2026, 09:25 UTC. Ash was not detected by satellite due to weather clouds, but emissions are considered likely based on recent activity; forecasts indicate no change in model winds at flight level for the next 18 hours. Original VAAC bulletin:Fuego Volcanic Ash Advisory
Puracé (Colombia): Possible volcanic ash emissions were reported for Puracé. Weather clouds obscured satellite and webcam views, and no recent ash plume height was observed as of September 4, 2026, 13:00 UTC. Original VAAC bulletin:Puracé Volcanic Ash Advisory
Reventador (Ecuador): Volcanic ash emissions were observed on webcam at Reventador. Satellite images were obscured by weather clouds, and models forecast ash movement to the west-northwest through the next 18 hours. Original VAAC bulletin:Reventador Volcanic Ash Advisory
Sabancaya (Peru): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Buenos Aires warned of a volcanic ash plume rising to an estimated 22000 ft (6700 m), or flight level 220, and moving at 10 kts in SE direction. Original VAAC bulletin:ash plume to 22,000 ft (6,700 m) as of Sep 4, 12:10 UTC
Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 45000 ft (13700 m), or flight level 450. Original VAAC bulletin:
FVAU04 at 16:53 UTC, 04/09/26 from ADRM VA ADVISORY DTG: 20260904/1650Z VAAC: DARWIN VOLCANO: KRAKATAU 262000 PSN: S0606 E10525 AREA: INDONESIA SOURCE ELEV: 155M AMSL ADVISORY NR: 2026/164 INFO SOURCE: HIMAWARI-9 CVGHM ERUPTION DETAILS: HIGH LEVEL ERUPTION TO FL450 MOV W OBS VA DTG: 04/1630Z OBS VA CLD: SFC/FL450 S0619 E10539 - S0625 E10447 - S0548 E10446 - S0548 E10534 MOV W 05KT FCST VA CLD +6 HR: 04/2230Z NOT AVBL FCST VA CLD +12 HR: 05/0430Z NOT AVBL FCST VA CLD +18 HR: 05/1030Z NOT AVBL RMK: VA IDENTIFIABLE ON LATEST RGB SATELLITE IMAGERY. A MORE DETAILS ADVISORY TO FOLLOW AS SOON AS POSSIBLE. NXT ADVISORY: WILL BE ISSUED BY 20260904/1710Z=
