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An ash plume from Semeru was observed on webcam at 02:00 UTC on 27 September 2026, moving southeast. Forecasts indicate continued movement, but the ash was not identifiable on the latest satellite imagery.
Original VAAC bulletin:

FVAU02 at 05:18 UTC, 27/09/26 from ADRM
VA ADVISORY
DTG: 20260927/0520Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2026/1106
INFO SOURCE: HIMAWARI-9, CVGHM, WEBCAM
ERUPTION DETAILS: VA OBS ON WEBCAM AT 27/0200Z MOV SE
EST VA DTG: 27/0500Z
EST VA CLD: SFC/FL150 S0806 E11251 - S0802 E11255 - S0819
 E11324 - S0833 E11324 - S0836 E11312 MOV SE 10KT
FCST VA CLD +6 HR: 27/1100Z SFC/FL150 S0808 E11252 - S0802
 E11253 - S0758 E11319 - S0811 E11324 - S0822 E11317
FCST VA CLD +12 HR: 27/1700Z SFC/FL150 S0807 E11251 - S0800
 E11254 - S0801 E11320 - S0821 E11323 - S0826 E11306
FCST VA CLD +18 HR: 27/2300Z SFC/FL150 S0806 E11251 - S0801
 E11255 - S0806 E11324 - S0827 E11324 - S0832 E11304
RMK: VA NOT IDENTIFIABLE ON LATEST SATELLITE IMAGERY. GROUND
 REPORTS INDICATE INTERMITTENT ERUPTIONS ARE ONGOING. HEIGHT
 AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND
 MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260927/1120Z=

Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Washington warned of a volcanic ash plume rising to an estimated 20000 ft (6100 m), or flight level 200.
Original VAAC bulletin:

FVXX25 at 23:44 UTC, 26/09/26 from KNES
VA ADVISORY
DTG: 20260926/2341Z

VAAC: WASHINGTON

VOLCANO: SANGAY 352090
PSN: S0200 W07820

AREA: ECUADOR

SOURCE ELEV: 17342 FT AMSL

ADVISORY NR: 2026/615

INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. 

ERUPTION DETAILS: VA EMS CONT 

OBS VA DTG: 26/2310Z

OBS VA CLD: SFC/FL200 S0155 W07852 - S0159 W07819
- S0201 W07820 - S0205 W07852 - S0155 W07852 MOV
W 10KT 

FCST VA CLD +6HR: 27/0500Z SFC/FL200 S0155 W07904
- S0159 W07820 - S0201 W07819 - S0210 W07903 -
S0155 W07904 

FCST VA CLD +12HR: 27/1100Z SFC/FL200 S0156
W07904 - S0159 W07820 - S0201 W07819 - S0209
W07902 - S0156 W07904 

FCST VA CLD +18HR: 27/1700Z SFC/FL200 S0153
W07903 - S0159 W07819 - S0201 W07820 - S0207
W07902 - S0153 W07903 

RMK: VA EMS OBS ON STLT MVG W APPRX 35 NM FM
SUMMIT. VA PSBLY SEEN ON WEBCAM BETWEEN WX CLDS.
A GEN W TO WSW MVMT EXP THRU T+18. FL AND FCST
BASED ON NWP MDLS. ...EVANS

NXT ADVISORY: WILL BE ISSUED BY 20260927/0545Z

Map of today's active volcanoes

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 35 kts in S direction.
Original VAAC bulletin: ash plume to 15,000 ft (4,600 m) as of Sep 26, 16:00 UTC

Sheveluch (Kamchatka): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Tokyo warned of a volcanic ash plume rising to an estimated 28000 ft (8500 m), or flight level 280, and moving at 50 kts in SE direction.
Original VAAC bulletin: ash plume to 28,000 ft (8,500 m) as of Sep 26, 17:20 UTC

Mayon (Luzon Island, Philippines): The Volcanic Ash Advisory Center (VAAC) Tokyo issued the following bulletin.
Original VAAC bulletin: ERUPTION AT 20260926/1413Z VA CLD UNKNOWN REPORTED OBS VA DTG: 26/1420Z

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 Sep 26, 15:54 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 7000 ft (2100 m), or flight level 070, and moving at 10 kts in W direction.
Original VAAC bulletin: ash plume to 7,000 ft (2,100 m) as of Sep 26, 10:47 UTC

Marapi (Western Sumatra, Indonesia): The Volcanic Ash Advisory Center (VAAC) Darwin issued the following bulletin.
Original VAAC bulletin: ERUPTION REPORTED AT 26/1440Z EST VA DTG: 26/1540Z

Dukono (Halmahera): (26 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, and moving at 05 kts in NE direction.
Original VAAC bulletin: ash plume to 15,000 ft (4,600 m) as of Sep 26, 07:00 UTC

Popocatépetl (Central Mexico): (25 Sep) Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Washington warned of a volcanic ash plume rising to an estimated 20000 ft (6100 m), or flight level 200.
Original VAAC bulletin: ash plume to 20,000 ft (6,100 m) as of Sep 25, 21:01 UTC

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

Puracé (Colombia): Possible volcanic ash emissions were reported for Puracé, but no ash plume was observed on satellite or webcam as of 26 September 2026, 15:40 UTC. Forecasts indicate potential northwest movement of ash, with no ash expected after 27 September 2026, 03:30 UTC.
Original VAAC bulletin: Puracé Volcanic Ash Advisory

Sangay (Ecuador): The Volcanic Ash Advisory Center (VAAC) Washington issued the following bulletin.
Original VAAC bulletin: PSBL CONTG VA EMS.

Reventador (Ecuador): Possible ongoing volcanic ash emissions are reported for Reventador as of 11:00 UTC on 26 September 2026, but no ash plume was observed due to cloud cover. Forecasts indicate little change in ash movement through the next 12 hours.
Original VAAC bulletin: Reventador Volcanic Ash Advisory

Nevados de Chillán (Central Chile): (26 Sep) Weak volcanic ash emissions were reported at Nevados de Chillán, but no ash cloud was detected in satellite imagery as of 26 September 2026, 05:30 UTC. No further advisories are expected.
Original VAAC bulletin: no ash plume identifiable as of 26 Sep 2026, 05:30 UTC