Ibu (Halmahera, Indonesia): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 and is moving at 10 kts in SE direction.
The full report is as follows: VA TO FL070 LAST REPORTED AT 24/1501Z EST VA DTG:25/1610Z to 7000 ft (2100 m)
Lewotolo (Lesser Sunda Islands): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 5000 ft (1500 m) altitude or flight level 050 .
The full report is as follows: VA TO FL050 MOV WEST. to 5000 ft (1500 m)
Semeru (East Java, Indonesia): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 15000 ft (4600 m) altitude or flight level 150 and is moving at 20 kts in SE direction.
The full report is as follows: VA TO FL150 LAST REPORTED AT 25/1342Z EST VA DTG:25/1600Z to 15000 ft (4600 m)
Dukono (Halmahera): (25 May) 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 and is moving at 10 kts in SE direction.
The full report is as follows: VA TO FL080 LAST REP AT 24/2055Z EST VA DTG:25/0500Z to 8000 ft (2400 m)
Santiaguito (Guatemala): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: PSBL VA EMS
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)
Sangay (Ecuador): 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: CONT VA EM to 20000 ft (6100 m)
Reventador (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 15000 ft (4600 m) altitude or flight level 150 .
The full report is as follows: NEW VA EMS to 15000 ft (4600 m)
Volcano Activity Summary for 25 May 2025:
