An eruption was reported at Mayon, with ash observed at 06:10 UTC on 12 November 2026. Ash was not identifiable in satellite data at the time of the latest observation. Original VAAC bulletin:
FVFE01 at 06:26 UTC, 12/11/26 from RJTD VA ADVISORY DTG: 20261112/0626Z VAAC: TOKYO VOLCANO: MAYON 273030 PSN: N1315 E12341 AREA: PHILIPPINES SOURCE ELEV: 2462M AMSL ADVISORY NR: 2026/823 INFO SOURCE: HIMAWARI-9 PHIVOLCS ERUPTION DETAILS: ERUPTION AT 20261112/0605Z FL090 EXTD SW REPORTED OBS VA DTG: 12/0610Z OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND FL090 090/15KT
FCST VA CLD +6 HR: NOT AVBL FCST VA CLD +12 HR: NOT AVBL FCST VA CLD +18 HR: NOT AVBL RMK: WE WILL ISSUE FURTHER ADVISORY IF VA IS DETECTED IN SATELLITE IMAGERY. NXT ADVISORY: NO FURTHER ADVISORIES=
Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Washington warned of a volcanic ash plume rising to an estimated 15000 ft (4600 m), or flight level 150. Original VAAC bulletin:
FVXX21 at 04:43 UTC, 12/11/26 from KNES VA ADVISORY DTG: 20261112/0440Z
RMK: VA EMS OBS IN STLT IMG UP TO APPRX 18NM FM SUMMIT. FQNT VOL INCANDESCENT ACTIVITY SEEN IN WEBCAM. NWP MDL GUIDANCE FCSTS GEN NW MOVMT THRU T+18. HGT BASED ON MOVMT AND NWP MDLS. ...MONAGHAN
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:
FVAU02 at 22:59 UTC, 11/11/26 from ADRM VA ADVISORY DTG: 20261111/2300Z VAAC: DARWIN VOLCANO: SEMERU 263300 PSN: S0806 E11255 AREA: INDONESIA SOURCE ELEV: 3657M AMSL ADVISORY NR: 2026/1292 INFO SOURCE: HIMAWARI-9, CVGHM ERUPTION DETAILS: VA TO FL150 OBS AT 11/2240Z MOV S OBS VA DTG: 11/2240Z OBS VA CLD: SFC/FL150 S0802 E11301 - S0851 E11253 - S0852 E11225 - S0830 E11214 - S0758 E11253 MOV S 10KT FCST VA CLD +6 HR: 12/0440Z SFC/FL150 S0757 E11257 - S0803 E11305 - S0901 E11230 - S0831 E11200 FCST VA CLD +12 HR: 12/1040Z SFC/FL150 S0806 E11302 - S0848 E11217 - S0815 E11158 - S0757 E11257 FCST VA CLD +18 HR: 12/1640Z SFC/FL150 S0806 E11302 - S0845 E11207 - S0806 E11152 - S0757 E11257 RMK: VA IDENTIFIABLE ON CURRENT SATELLITE IMAGERY MOV S. GROUND REPORTS INDICATE VA EMISSIONS ARE ONGOING. VA HEIGHT AND FCST BASED ON GROUND REPORTS, HIMAWARI-9 SAT AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20261112/0500Z=
Mayon (Luzon Island, Philippines): (11 Nov) An eruption was reported at Mayon with ash observed at 04:00 UTC on 11 November 2026. No ash cloud was identifiable in satellite data at that time; forecasts are not available. Original VAAC bulletin:eruption reported as of 11 Nov 2026, 04:00 UTC
Karangetang (Siau Island, Sangihe Islands, Indonesia): A ground report indicated an eruption at Karangetang at 09:59 UTC on November 11, but no ash plume height was provided and ash was not detected by satellite. Forecasts expect any ash to dissipate within 3–6 hours. Original VAAC bulletin:ash plume height not reported as of latest observation
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 Nov 11, 17:37 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 Nov 11, 11:11 UTC
Dukono (Halmahera): (10 Nov) 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, and moving at 15 kts in SW direction. Original VAAC bulletin:ash plume to 9,000 ft (2,700 m) as of Nov 10, 22:20 UTC
Popocatépetl (Central Mexico): 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, and moving at 5 kts in S direction. Original VAAC bulletin:ash plume to 20,000 ft (6,100 m) as of Nov 11, 13:16 UTC
Santiaguito (Guatemala): (11 Nov) Satellite observations reported an ash plume from Santiaguito reaching 13,000 ft (4,000 m) at 06:40 UTC on 11 November 2026. Forecasts indicate possible light and variable movement of ash to the south and southeast through the next 12 hours. Original VAAC bulletin:ash plume to 13,000 ft (4,000 m) as of 11 Nov 2026, 06:40 UTC
Fuego (Guatemala): Ongoing volcanic ash emissions are reported at Fuego. Ash was not detected by satellite due to weather clouds, but emissions are likely continuing based on recent activity. Forecasts indicate possible ash presence up to FL140 in the next 18 hours. Original VAAC bulletin:Fuego Volcanic Ash Advisory
Puracé (Colombia): Volcanic ash emissions were reported for Puracé. No ash plume height was observed or specified as of the latest advisory issued at 11 November 2026, 11:52 UTC. Original VAAC bulletin:Puracé Volcanic Ash Advisory
Sangay (Ecuador): (11 Nov) Possible volcanic ash emissions were reported for Sangay, but no ash plume or height was observed as of the latest bulletin. Forecasts indicate potential southwest movement of ash, with no ash expected after 11 November at 15:30 UTC. Original VAAC bulletin:Sangay Volcanic Ash Advisory
Reventador (Ecuador): Ongoing volcanic ash emissions have been observed at Reventador. The latest advisory was issued at 16:53 UTC on 11 November 2026; ash height was not specified. Original VAAC bulletin:Reventador Volcanic Ash Advisory
Nevados de Chillán (Central Chile): (11 Nov) The Volcanic Ash Advisory Center (VAAC) Buenos Aires issued the following bulletin. Original VAAC bulletin:NO VA EMSSION
