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 S direction. The full report is as follows:
FVAU01 at 23:18 UTC, 22/12/25 from ADRM VA ADVISORY DTG: 20251222/2320Z VAAC: DARWIN VOLCANO: IBU 268030 PSN: N0129 E12738 AREA: INDONESIA SOURCE ELEV: 1325M AMSL ADVISORY NR: 2025/1431 INFO SOURCE: CVGHM, HIMAWARI-9 ERUPTION DETAILS: VA TO FL070 LAST REPORTED AT 22/2251Z MOV SSE EST VA DTG: 22/2300Z EST VA CLD: SFC/FL070 N0134 E12740 – N0111 E12758 – N0104 E12731 – N0133 E12734 MOV S 10KT FCST VA CLD +6 HR: 23/0500Z SFC/FL070 N0132 E12735 – N0133 E12741 – N0109 E12756 – N0104 E12730 FCST VA CLD +12 HR: 23/1100Z SFC/FL070 N0134 E12736 – N0134 E12741 – N0104 E12751 – N0104 E12724 FCST VA CLD +18 HR: 23/1700Z SFC/FL070 N0133 E12741 – N0105 E12755 – N0106 E12719 – N0134 E12735 RMK: VA NOT IDENTIFIABLE ON RECENT SATELLITE IMAGERY DUE TO MET CLOUD. VA EMISSIONS ARE EXPECTED TO BE ONGOING. VA HEIGHT AND MOVEMENT BASED ON GROUND REPORTS AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20251223/0520Z=
Popocatépetl (Central Mexico): A higher-than-average phase of activity at the volcano yesterday produced ash plumes that rose to approx. 20,000 ft (7 km) altitude. The overall activity at the volcano remains essentially unchanged as magma continues to rise slowly inside the volcano’s conduits and accumulates to build lava domes in its summit crater. Occasional stronger explosions typically destroy these domes from time to time, initialing a new cycles of growing another dome. The Mexican National Center for Disaster Prevention (CENAPRED) detected 32 ash / steam emissions in total as well as 76 minutes of volcanic tremor during the latest 24 hour observation interval. Authorities are maintaining the alert level at Yellow, Phase 2, and are urging the public to remain vigilant, and not approach the volcano to less than 12 distance. The crater area itself should be considered extremely dangerous. Popocatepétl’s current phase of activity has now been lasting more than 30 years, with fluctuating intensity since the volcano came back to life in 1994. Given it’s history of very violent explosive eruptions and the close proximity to major cities and densely inhabited areas, it is one of the most monitored volcanoes in the world and under constant vigilance.
Santiaguito (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 13000 ft (4000 m) altitude or flight level 130 . The full report is as follows: LGT VA EMS to 13000 ft (4000 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: FRQNT VA EM to 15000 ft (4600 m)
Puracé (Colombia): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 17000 ft (5200 m) altitude or flight level 170 . The full report is as follows: VA EM DETECTED to 17000 ft (5200 m)
Sangay (Ecuador): (22 Dec) Volcanic Ash Advisory Center Washington (VAAC) issued the following report: NO VA OBS
Reventador (Ecuador): 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: ONGOING VA EMS to 14000 ft (4300 m)
Barren Island (Indian Ocean): The effusive eruption at the volcano continues. A new lava flow started to emerge from the northern flank vent. It currently advances towards the northern coast, likely covering the surfaces created by previous lava flows. The lava flow that had earlier formed the new lava platform on the northern coastline seems to have stopped being active.
The recent and the new lava flows within the time range between 10 and 22 December (image: Sentinel-2)
The effusive eruption at the volcano continues. A new lava flow started to emerge from the northern flank vent. It currently advances towards the northern coast, likely covering the surfaces created by previous lava flows. The lava flow that had earlier formed the new lava platform on the northern coastline seems to have stopped being active.
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:
FVXX23 at 13:51 UTC, 22/12/25 from KNES VA ADVISORY DTG: 20251222/1348Z
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report:
FVFE01 at 08:30 UTC, 22/12/25 from RJTD VA ADVISORY DTG: 20251222/0830Z VAAC: TOKYO VOLCANO: KANLAON 272020 PSN: N1025 E12308 AREA: PHILIPPINES SOURCE ELEV: 2435M AMSL ADVISORY NR: 2025/169 INFO SOURCE: HIMAWARI-9 PHIVOLCS ERUPTION DETAILS: ERUPTION AT 20251222/0805Z FL090 EXTD NW REPORTED OBS VA DTG: 22/0810Z OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND FL090 120/10KT
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=
