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Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 21000 ft (6400 m) altitude or flight level 210 .
The full report is as follows:

FVXX22 at 07:52 UTC, 26/12/25 from KNES
VA ADVISORY
DTG: 20251226/0749Z

VAAC: WASHINGTON

VOLCANO: SANGAY 352090
PSN: S0200 W07820

AREA: ECUADOR

SOURCE ELEV: 17342 FT AMSL

ADVISORY NR: 2025/973

INFO SOURCE: GOES-19. VONA. NWP MODELS.

ERUPTION DETAILS: VA EM DETECTED

OBS VA DTG: 26/0710Z

OBS VA CLD: SFC/FL210 S0200 W07820 – S0213 W07811
– S0216 W07821 – S0201 W07821 – S0200 W07820 MOV
S 10KT

FCST VA CLD +6HR: 26/1300Z SFC/FL210 S0143 W07811
– S0149 W07804 – S0201 W07820 – S0200 W07821 –
S0143 W07811

FCST VA CLD +12HR: 26/1900Z SFC/FL210 S0144
W07807 – S0155 W07759 – S0201 W07820 – S0200
W07821 – S0144 W07807

FCST VA CLD +18HR: 27/0100Z NO VA EXP

RMK: VONA RCVD FOR VA MOVNG SSE FM SUMMIT AND
CONFIRMED IN STLT IMG SEEN AT APX 15 NMI SSE FM
SUMMIT. LGT AND VAR WNDS EXP WITH MOVNT TO ENE
THRU T+12 HRS. FL BSD ON VONA. FCST BSD ON NWP
MDLS. …LINER

NXT ADVISORY: WILL BE ISSUED BY 20251226/1345Z

Volcanic Ash Advisory Center Darwin (VAAC) issued the following report:

FVAU02 at 04:29 UTC, 26/12/25 from ADRM
VA ADVISORY
DTG: 20251226/0430Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2025/1474
INFO SOURCE: CVGHM, HIMAWARI-9
ERUPTION DETAILS: ERUPTION LAST REPORTED AT 26/0031Z
EST VA DTG: 26/0410Z
EST VA CLD: SFC/FL150 S0811 E11254 – S0803 E11249 – S0744
E11307 – S0800 E11320 – S0812 E11310 MOV NE 05KT
FCST VA CLD +6 HR: 26/1010Z SFC/FL150 S0806 E11250 – S0743
E11300 – S0746 E11311 – S0757 E11318 – S0811 E11256
FCST VA CLD +12 HR: 26/1610Z SFC/FL150 S0806 E11250 – S0743
E11300 – S0746 E11311 – S0757 E11318 – S0811 E11256
FCST VA CLD +18 HR: 26/2210Z SFC/FL150 S0812 E11256 – S0809
E11250 – S0743 E11253 – S0743 E11306 – S0751 E11314
RMK: VA NOT IDENTIFIABLE ON SATELLITE IMAGERY DUE TO MET
CLOUD. INTERMITTENT DISCRETE EMISSIONS ARE EXPECTED TO BE
ONGOING. VA HEIGHT AND MOVEMENT BASED ON GROUND REPORTS AND
MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20251226/1030Z=

Satellite image of Canlaon volcano on 25 Dec 2025

Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report:

FVFE01 at 22:50 UTC, 25/12/25 from RJTD
VA ADVISORY
DTG: 20251225/2250Z
VAAC: TOKYO
VOLCANO: KANLAON 272020
PSN: N1025 E12308
AREA: PHILIPPINES
SOURCE ELEV: 2435M AMSL
ADVISORY NR: 2025/173
INFO SOURCE: HIMAWARI-9 PHIVOLCS
ERUPTION DETAILS: ERUPTION AT 20251225/2227Z FL090 EXTD SW REPORTED
OBS VA DTG: 25/2230Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND FL090 080/9KT
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=

Map of today’s active volcanoes

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 05 kts in S direction.
The full report is as follows: VA TO FL070 REPORTED 25/0902Z EST VA DTG:25/0910Z to 7000 ft (2100 m)

Semeru (East Java, Indonesia): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: ERUPTION LAST REPORTED AT 25/1004Z EST VA DTG:25/1610Z

Popocatépetl (Central Mexico): Mild explosive activity continues from the volcano. The Volcanic Ash Advisory Center (VAAC) Washington reported intermittent emissions of volcanic ash plumes.
The full report is as follows: sporadic emissions of volcanic ash

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: OCNL 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: FREQUENT VA EMS to 15000 ft (4600 m)

Puracé (Colombia): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EMS PSBL

Reventador (Ecuador): Mild explosive activity continues from the volcano. The Volcanic Ash Advisory Center (VAAC) Washington reported intermittent emissions of volcanic ash plumes.
The full report is as follows: sporadic emissions of volcanic ash

Sabancaya (Peru): Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: NO VA EMISSION