Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Wellington warned of a volcanic ash plume rising to an estimated 5000 ft (1500 m), or flight level 050, and moving at 10 kts in W direction. Original VAAC bulletin:
FVPS01 at 02:56 UTC, 27/08/26 from NZKL VA ADVISORY DTG: 20260827/0256Z VAAC: WELLINGTON VOLCANO: AMBAE 257030 PSN: S1523 E16750 AREA: VANUATU SOURCE ELEV: 1496M AMSL ADVISORY NR: 2026/343 INFO SOURCE: H9 SATELLITE IMAGERY ERUPTION DETAILS: NEW ERUPTION AT 23Z HEADING EAST OBS VA DTG: 27/0256Z OBS VA CLD: SFC/FL050 S1520 E16752 - S1528 E16753 - S1532 E16735 - S1518 E16730 MOV W 10KT SFC/FL150 S1520 E16752 - S1502 E16816 - S1537 E16841 - S1528 E16753 MOV E 15KT FCST VA CLD +6 HR: 27/0856Z SFC/FL050 S1526 E16748 - S1532 E16735 - S1520 E16732 - S1520 E16748 SFC/FL150 S1526 E16748 - S1520 E16748 - S1501 E16817 - S1535 E16903 - S1553 E16851 FCST VA CLD +12 HR: 27/1456Z SFC/FL150 S1519 E16749 - S1522 E16828 - S1548 E16922 - S1612 E16852 - S1528 E16747 FCST VA CLD +18 HR: 27/2056Z SFC/FL150 S1516 E16748 - S1553 E17042 - S1614 E17047 - S1613 E16902 - S1528 E16744 RMK: ASH IDENTIFIABLE ON SATELLITE IMAGERY. VA PLUME EAST OF VOLCANO. HEIGHT ESTIMATED FROM SATELLITE AND MODEL SOUNDING, FORECAST BASED ON DISPERSION MODELS NXT ADVISORY: NO LATER THAN 20260827/0856Z=
Klyuchevskoy (Kamchatka): (26 Aug) Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Tokyo warned of a volcanic ash plume rising to an estimated 20000 ft (6100 m), or flight level 200, and moving at 15 kts in N direction. Original VAAC bulletin:ash plume to 20,000 ft (6,100 m) as of Aug 25, 23:20 UTC
Mayon (Luzon Island, Philippines): (26 Aug) An eruption was reported at Mayon at 00:30 UTC on 26 August 2026, but as of 00:20 UTC, volcanic ash could not be identified in satellite data. No ash plume height was observed or reported. Original VAAC bulletin:ash cloud presence unknown as of 26 Aug 2026, 00:20 UTC
Langila (New Britain, Papua New Guinea): (25 Aug) 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 Aug 25, 21:00 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. Original VAAC bulletin:ash plume to 7,000 ft (2,100 m) as of Aug 26, 19:20 UTC
Lewotobi (Flores): (25 Aug) 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 10 kts in W direction. Original VAAC bulletin:ash plume to 9,000 ft (2,700 m) as of Aug 25, 22:50 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 6000 ft (1800 m), or flight level 060. Original VAAC bulletin:ash plume to 6,000 ft (1,800 m) as of Aug 26, 18:20 UTC
Semeru (East Java, Indonesia): Ground reports indicate ongoing eruptions at Semeru as of August 26, 2026, 15:40 UTC, with ash movement toward the east at 10 knots. Ash height was not directly observed; forecasts are based on previous satellite imagery, ground reports, and model guidance. Original VAAC bulletin:Semeru Volcanic Ash Advisory
Dukono (Halmahera): 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. Original VAAC bulletin:ash plume to 6,000 ft (1,800 m) as of Aug 26, 16:10 UTC
Aoba (Vanuatu): The Darwin VAAC issued a volcanic ash advisory for Aoba on August 26, 2026, but no observed ash plume height or observation time was provided. Forecast and eruption details remain unknown. Original VAAC bulletin:observation details not provided
Kilauea (Hawai’i): (25 Aug) Episode 54 of lava fountaining in Halemaʻumaʻu crater at the summit of Kīlauea began at 10:30 a.m. HST on August 25 and continues as of this notice at 12:15 p.m. HST.
Based on HVO webcam views, the north vent lava fountain is reaching 500 feet (150 meters) above ground level, and its plume is reaching 17,000 feet (5,200 meters) above sea level. Ground-level sensors near the eruptive vents indicate that winds are blowing from the northeast direction, which suggests that volcanic gas emissions and volcanic material may be distributed to the southwest direction from Halemaʻumaʻu. The effusion rate from the north vent has reached approximately 260 cubic yards (200 cubic meters) per second, but it is expected to decline for the remainder of the episode.
Fuego (Guatemala): 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:ash plume to 15,000 ft (4,600 m) as of Aug 26, 19:10 UTC
Rincón de la Vieja (Costa Rica): The Volcanic Ash Advisory Center (VAAC) Washington issued the following bulletin. Original VAAC bulletin:VONA RPTD ERUPTION
Poas (Costa Rica): An eruption was reported at Poas volcano according to VONA. Ash cloud movement and height are based on model estimates; no ash plume height was directly observed. Original VAAC bulletin:Poas Volcanic Ash Advisory
Puracé (Colombia): Continuous volcanic ash emissions were observed at Puracé. Ash is estimated to be moving northwest at 30 knots. No specific ash plume height was reported in the latest advisory. Original VAAC bulletin:Puracé 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 15000 ft (4600 m), or flight level 150, and moving at 20 kts in NW direction. Original VAAC bulletin:ash plume to 15,000 ft (4,600 m) as of Aug 26, 13:50 UTC
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:
FVXX20 at 19:41 UTC, 26/08/26 from KNES VA ADVISORY DTG: 20260826/1938Z
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, and moving at 20 kts in NW direction. Original VAAC bulletin:
FVXX22 at 14:31 UTC, 26/08/26 from KNES VA ADVISORY DTG: 20260826/1428Z
RMK: CONT VA EMS OBS IN WEBCAM. VA NOT OBS IN STLT IMAGERY DUE TO WX CLDS. VO FCST TO MOV NW FM SUMMIT THRU T+18HRS BEFORE DISP. VO ACT MODERATE. ...FISHER
