The Volcanic Ash Advisory Center (VAAC) Tokyo issued the following bulletin. Original VAAC bulletin:
FVFE01 at 00:49 UTC, 20/09/26 from RJTD VA ADVISORY DTG: 20260920/0049Z VAAC: TOKYO VOLCANO: SAKURAJIMA [AIRA CALDERA] 282080 PSN: N3136 E13039 AREA: JAPAN SOURCE ELEV: 1117M AMSL ADVISORY NR: 2026/205 INFO SOURCE: JMA HIMAWARI-9 ERUPTION DETAILS: ERUPTED AT 20260920/0038Z FL090 EXTD SW OBS VA DTG: 20/0030Z OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND FL090 020/19KT
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=
Kanlaon (Central Philippines): An eruption was reported at Kanlaon, with volcanic ash observed as of 19 September 2026, 16:00 UTC. Ash was not identifiable from satellite data at that time. Original VAAC bulletin:eruption reported as of 19 Sep 2026, 16:00 UTC
Mayon (Luzon Island, Philippines): An eruption was reported at Mayon at 08:52 UTC on 19 September 2026, but no volcanic ash cloud was identifiable in satellite data as of 09:00 UTC. No further advisories are planned unless ash is detected. Original VAAC bulletin:no ash plume observed as of 09:00 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, and moving at 05 kts in NE direction. Original VAAC bulletin:ash plume to 7,000 ft (2,100 m) as of Sep 19, 10:03 UTC
Lewotolo (Lesser Sunda Islands): (18 Sep) A volcanic ash advisory has been issued for Lewotolo. Ash was reported from the ground at 18 Sep 10:51 UTC, with movement towards the west at 10 knots. The ash cloud height is estimated based on satellite, ground reports, and model guidance, but was not identifiable on satellite imagery. Original VAAC bulletin:Lewotolo Volcanic Ash Advisory
Semeru (East Java, Indonesia): A ground-based report indicated a volcanic ash emission from Semeru at 19 September 2026, 04:14 UTC, with ash estimated to be moving east at 25 knots as of 09:20 UTC. The ash cloud was not identifiable on satellite imagery due to meteorological clouds; forecasts indicate intermittent emissions may continue. Original VAAC bulletin:Semeru Volcanic Ash Advisory
Ambrym (Vanuatu): No observed ash plume height was reported for Ambrym as of 19 September 13:40 UTC. The advisory notes unknown eruption details and no further advisories are expected. Original VAAC bulletin:no ash plume height observed as of 19 Sep 13:40 UTC
Santiaguito (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. Original VAAC bulletin:ash plume to 14,000 ft (4,300 m) as of Sep 19, 15:50 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 5 kts in N direction. Original VAAC bulletin:ash plume to 14,000 ft (4,300 m) as of Sep 19, 12:10 UTC
Masaya (Nicaragua): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Washington warned of a volcanic ash plume rising to an estimated 5000 ft (1500 m), or flight level 050. Original VAAC bulletin:ash plume to 5,000 ft (1,500 m) as of Sep 19, 15:10 UTC
Puracé (Colombia): Satellite and webcam data as of 19 September 2026, 11:30 UTC, show no identifiable volcanic ash from Puracé. No further advisories are expected. Original VAAC bulletin:no ash plume observed as of 19 Sep 2026, 11:30 UTC
Sangay (Ecuador): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Washington warned of a volcanic ash plume rising to an estimated 23000 ft (7000 m), or flight level 230. Original VAAC bulletin:ash plume to 23,000 ft (7,000 m) as of Sep 19, 18:00 UTC
Reventador (Ecuador): 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 15 kts in NW direction. Original VAAC bulletin:ash plume to 14,000 ft (4,300 m) as of Sep 19, 11:50 UTC
Satellite image of Santiaguito volcano on 19 Sep 2026
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. Original VAAC bulletin:
FVXX22 at 16:22 UTC, 19/09/26 from KNES VA ADVISORY DTG: 20260919/1619Z
RMK: VA EMS OBS IN STLT IMG UP TO APPRX 10NM FM SUMMIT. NWP MDL GUIDANCE FCSTS LGT AND VARIABLE MOVMT TO THE W THRU T+6, THEN GEN SE MOVMT BY T+12. HGT BASED ON MOVMT AND NWP MDLS. ...MONAGHAN
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 5 kts in N direction. Original VAAC bulletin:
FVXX20 at 12:53 UTC, 19/09/26 from KNES VA ADVISORY DTG: 20260919/1251Z
VAAC: WASHINGTON
VOLCANO: FUEGO 342090 PSN: N1428 W09052
AREA: GUATEMALA
SOURCE ELEV: 12346 FT AMSL
ADVISORY NR: 2026/1096
INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. VOLCAT.
ERUPTION DETAILS: CONT VA EMS
OBS VA DTG: 19/1210Z
OBS VA CLD: SFC/FL140 N1444 W09046 - N1440 W09040 - N1428 W09052 - N1444 W09046 MOV N 5KT
A low-level continuous eruption was reported at Ambrym, with ash observed near the volcano as of 07:56 UTC on 19 September 2026. The ash cloud was moving east at 15 knots; forecasts indicate continued movement and dispersion. Original VAAC bulletin:
FVPS01 at 07:56 UTC, 19/09/26 from NZKL VA ADVISORY DTG: 20260919/0756Z VAAC: WELLINGTON VOLCANO: AMBRYM 257040 PSN: S1615 E16807 AREA: VANUATU SOURCE ELEV: 1334M AMSL ADVISORY NR: 2026/5 INFO SOURCE: HIMAWARI-9, GOES-18 ERUPTION DETAILS: LOW-LEVEL CONTINUOUS ERUPTION EST VA DTG: 19/0756Z EST VA CLD: SFC/FL080 S1621 E16758 - S1526 E16813 - S1503 E16937 - S1615 E16936 MOV E 15KT FCST VA CLD +6 HR: 19/1356Z SFC/FL080 S1621 E16801 - S1530 E16751 - S1503 E16934 - S1621 E16933 FCST VA CLD +12 HR: 19/1956Z SFC/FL080 S1626 E16800 - S1529 E16725 - S1511 E16825 - S1620 E16824 FCST VA CLD +18 HR: 20/0156Z SFC/FL080 S1622 E16800 - S1547 E16713 - S1523 E16729 - S1549 E16829 - S1624 E16819 RMK: ASH OBSERVABLE ON SATELLITE IMAGERY NEAR VOLCANO, EXTENT TO NORTHEAST OBSC BY MET CLOUD. MOVEMENT BASED ON MODEL GUIDANCE AND SATELLITE IMAGERY. NXT ADVISORY: NO LATER THAN 20260919/1356Z=
