Map of today's active volcanoesIbu (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 E direction.The full report is as follows: VA TO FL070 LAST REPORTED AT 21/1240Z MOV E to 7000 ft (2100 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 10 kts in NE direction.The full report is as follows: VA TO FL150 LAST REPORTED 21/1440Z EST VA DTG:21/1650Z to 15000 ft (4600 m)Dukono (Halmahera): (21 Dec) 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 15 kts in E direction.The full report is as follows: VA TO FL070 OBS AT 21/0030Z, EXT E OBS VA DTG:21/0030Z to 7000 ft (2100 m)Popocatépetl (Central Mexico): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 23000 ft (7000 m) altitude or flight level 230 .The full report is as follows: LARGE VA EMISSIONS to 23000 ft (7000 m)Santiaguito (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 14000 ft (4300 m) altitude or flight level 140 .The full report is as follows: NEW VA EMS to 14000 ft (4300 m)Fuego (Guatemala): 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: ONGOING VA EM to 15000 ft (4600 m)Puracé (Colombia): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: LGT VA EM LKLYSangay (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: OCNL VA EMSReventador (Ecuador): 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 .The full report is as follows: VA EMS OBS to 16000 ft (4900 m)Volcano Activity Summary for 21 Dec 2025: