Mayon (Luzon Island, Philippines): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTION AT 20230821/1946Z VA CLD UNKNOWN REPORTED OBS VA DTG:21/2000Z
Bagana (Bougainville Island, Papua New Guinea): (20 Aug) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 8000 ft (2400 m) altitude or flight level 080 .
The full report is as follows: VA OBS TO FL080 MOV WNW AT 20/2240Z OBS VA DTG:20/2240Z to 8000 ft (2400 m)
Popocatépetl (Central Mexico): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 22000 ft (6700 m) altitude or flight level 220 .
The full report is as follows: NEW VA EMS to 22000 ft (6700 m)
Fuego (Guatemala): (21 Aug) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 16000 ft (4900 m) altitude or flight level 160 and is moving at 10 kts in W direction.
The full report is as follows: CONT VA EMS OBS to 16000 ft (4900 m)
Nevado del Ruiz (Colombia): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 20000 ft (6100 m) altitude or flight level 200 .
The full report is as follows: NEW VA EMS to 20000 ft (6100 m)
Reventador (Ecuador): (21 Aug) Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EMS HAS DISP
Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 24000 ft (7300 m) altitude or flight level 240 and is moving at 10 kts in NW direction.
The full report is as follows: INTERMITTENT EMISSIONS to 24000 ft (7300 m)
Ubinas (Peru): Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: PUFF AT 1430Z