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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:

FVAU04 at 22:33 UTC, 25/09/26 from ADRM
VA ADVISORY
DTG: 20260925/2250Z
VAAC: DARWIN
VOLCANO: LEWOTOLOK 264230
PSN: S0816 E12330
AREA: INDONESIA
SOURCE ELEV: 1423M AMSL
ADVISORY NR: 2026/279
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL070 OBS AT AT 25/2230Z MOV NW
EST VA DTG: 25/2230Z
EST VA CLD: SFC/FL070 S0815 E12332 - S0818 E12331 - S0818
 E12307 - S0802 E12313 MOV NW 10KT
FCST VA CLD +6 HR: 26/0430Z SFC/FL070 S0815 E12332 - S0818
 E12331 - S0818 E12307 - S0801 E12313
FCST VA CLD +12 HR: 26/1030Z SFC/FL070 S0818 E12332 - S0820
 E12306 - S0800 E12313 - S0815 E12333
FCST VA CLD +18 HR: 26/1630Z SFC/FL070 S0818 E12332 - S0820
 E12306 - S0800 E12313 - S0815 E12333
RMK: VA IDENTIFIABLE ON LATEST SATELLITE IMAGERY MOV NW.
 REGULAR GROUND REPORTS INDICATE INTERMITTENT ERUPTIONS ARE
 ONGOING. HEIGHT AND MOVEMENT BASED ON GROUND REPORTS AND
 MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260926/0450Z=

Map of today's active volcanoes

Etna (Sicily, Italy): An eruption with ongoing ash emission was reported at Etna, with the latest observation at 10:00 UTC on 25 September 2026. No ash plume height was observed or reported; forecasts indicate continued ash presence.
Original VAAC bulletin: ongoing ash emission as of 25 Sep 2026, 10:00 UTC

Sheveluch (Kamchatka): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Tokyo warned of a volcanic ash plume rising to an estimated 38000 ft (11600 m), or flight level 380, and moving at 35 kts in W direction.
Original VAAC bulletin: ash plume to 38,000 ft (11,600 m) as of Sep 25, 18:20 UTC

Sakurajima (Kyushu, Japan): An eruption was reported at Sakurajima at 12:36 UTC on 25 September 2026, but no volcanic ash cloud was identifiable in satellite data as of 12:30 UTC. No forecast information is available.
Original VAAC bulletin: no ash plume identifiable as of 25 Sep 2026, 12:30 UTC

Ibu (Halmahera, Indonesia): The Volcanic Ash Advisory Center (VAAC) Darwin issued the following bulletin.
Original VAAC bulletin: VA ERUPTION REPORTED AT 25/0605Z MOV N EST VA DTG: 25/0950Z

Lewotolo (Lesser Sunda Islands): (25 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, and moving at 15 kts in NW direction.
Original VAAC bulletin: ash plume to 7,000 ft (2,100 m) as of Sep 25, 04:50 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, and moving at 05 kts in SE direction.
Original VAAC bulletin: ash plume to 15,000 ft (4,600 m) as of Sep 25, 17:15 UTC

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.
Original VAAC bulletin: ash plume to 7,000 ft (2,100 m) as of Sep 25, 14:20 UTC

Santiaguito (Guatemala): (25 Sep) The Volcanic Ash Advisory Center (VAAC) Washington issued the following bulletin.
Original VAAC bulletin: NO VA EMS

Fuego (Guatemala): The Volcanic Ash Advisory Center (VAAC) Washington issued the following bulletin.
Original VAAC bulletin: VA EMS CONT

Sangay (Ecuador): Possible volcanic ash emissions were reported for Sangay, but no ash plume was observed in satellite imagery as of 25 September 2026, 18:10 UTC. Forecasts indicate little change in ash cloud movement and height over the next 6 hours.
Original VAAC bulletin: Sangay Volcanic Ash Advisory

Reventador (Ecuador): 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.
Original VAAC bulletin: ash plume to 16,000 ft (4,900 m) as of Sep 25, 11:30 UTC

Volcano Activity Summary for 25 Sep 2026:

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:

FVAU01 at 14:20 UTC, 25/09/26 from ADRM
VA ADVISORY
DTG: 20260925/1430Z
VAAC: DARWIN
VOLCANO: DUKONO 268010
PSN: N0142 E12754
AREA: INDONESIA
SOURCE ELEV: 1229M AMSL
ADVISORY NR: 2026/796
INFO SOURCE: HIMAWARI-9
ERUPTION DETAILS: VA TO FL070 OBS AT 25/0940Z
EST VA DTG: 25/1410Z
EST VA CLD: SFC/FL070 N0115 E12806 - N0117 E12716 - N0205
 E12638 - N0253 E12706 - N0256 E12813 - N0205 E12848 MOV N
 05KT
FCST VA CLD +6 HR: 25/2010Z SFC/FL070 N0130 E12758 - N0130
 E12741 - N0239 E12712 - N0248 E12818 - N0205 E12911
FCST VA CLD +12 HR: 26/0210Z SFC/FL070 N0128 E12754 - N0133
 E12743 - N0235 E12719 - N0250 E12818 - N0211 E12908
FCST VA CLD +18 HR: 26/0810Z SFC/FL070 N0130 E12757 - N0139
 E12734 - N0235 E12716 - N0257 E12803 - N0211 E12903
RMK: VA UNIDENTIFIABLE ON SATELLITE IMAGERY DUE TO MET
 CLOUD. HOWEVER VA IS STILL EXPECTED IN THE AREA. VA HEIGHT
 AND MOVEMENT BASED ON SATELLITE IMAGERY AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260925/2030Z=