Ibu Volcano Volcanic Ash Advisory: VA ERUPTION TO FL060 LAST REPORTED 29/0820Z, MOV W

Satellite image of Ibu volcano on 29 Dec 2025

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

FVAU01 at 09:37 UTC, 29/12/25 from ADRM
VA ADVISORY
DTG: 20251229/0940Z
VAAC: DARWIN
VOLCANO: IBU 268030
PSN: N0129 E12738
AREA: INDONESIA
SOURCE ELEV: 1325M AMSL
ADVISORY NR: 2025/1459
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA ERUPTION TO FL060 LAST REPORTED
29/0820Z, MOV W
EST VA DTG: 29/0920Z
EST VA CLD: SFC/FL060 N0128 E12739 – N0125 E12727 – N0135
E12728 – N0131 E12740 MOV W 05KT
FCST VA CLD +6 HR: 29/1520Z SFC/FL060 N0128 E12739 – N0125
E12727 – N0135 E12728 – N0131 E12740
FCST VA CLD +12 HR: 29/2120Z SFC/FL060 N0128 E12739 – N0125
E12726 – N0135 E12728 – N0131 E12740
FCST VA CLD +18 HR: 30/0320Z SFC/FL060 N0128 E12739 – N0125
E12726 – N0135 E12728 – N0131 E12740
RMK: VA NOT IDENTIFIABLE ON CURRENT SATELLITE IMAGERY DUE TO
MET CLOUD. GROUND REPORTS INDICATE INTERMITTENT DISCRETE
EMISSIONS ARE ONGOING. VA HEIGHT AND MOVEMENT BASED ON PAST
SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20251229/1540Z=

Etna Volcano Volcanic Ash Advisory: ERUPTION AT 20251228/1918Z STROMBOLIAN ACTIVITY DECREASING

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

FVXX01 at 04:30 UTC, 29/12/25 from LFPW
VA ADVISORY
DTG: 20251229/0430Z
VAAC: TOULOUSE
VOLCANO: ETNA 211060
PSN: N3744 E01459
AREA: SICILY VOLCANIC PROVINCE
SOURCE ELEV: 3357M
ADVISORY NR: 2025/93
INFO SOURCE: VONA, INGV, WEBCAM, SAT IMAGERY
AVIATION COLOUR CODE: RED
ERUPTION DETAILS: ERUPTION AT 20251228/1918Z STROMBOLIAN ACTIVITY
DECREASING
OBS VA DTG: 29/0430Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND FL100/150
120/10KT
FCST VA CLD +6 HR: 29/1030Z NO VA EXP
FCST VA CLD +12 HR: 29/1630Z NO VA EXP
FCST VA CLD +18 HR: 29/2230Z NO VA EXP
RMK: VA NOT DETECTABLE IN SPITE OF GOOD VISIBILITY. THIN CLOUD
MOVING TOWARD THE NORTH WEST, COMPOSED OF WATER VAPOR AND S02. DUE
TO THE LOW INTENSITY OF THIS ERUPTIVE EVENT QVA DO NOT SHOW ANY
SIGNIFICANT AREA AND WILL NOT BE PROVIDED.
NXT ADVISORY: NO LATER THAN 20251229/0800Z=

Semeru Volcano Volcanic Ash Advisory: ERUPTION LAST REPORTED AT 28/1634Z EST VA DTG: 28/2210Z

Satellite image of Semeru volcano on 28 Dec 2025

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

FVAU02 at 22:30 UTC, 28/12/25 from ADRM
VA ADVISORY
DTG: 20251228/2230Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2025/1485
INFO SOURCE: CVGHM, HIMAWARI-9, WEBCAM
ERUPTION DETAILS: ERUPTION LAST REPORTED AT 28/1634Z
EST VA DTG: 28/2210Z
EST VA CLD: SFC/FL150 S0807 E11248 – S0757 E11252 – S0754
E11307 – S0806 E11321 – S0823 E11308 MOV SE 10KT
FCST VA CLD +6 HR: 29/0410Z SFC/FL150 S0806 E11249 – S0757
E11253 – S0753 E11306 – S0808 E11323 – S0821 E11309
FCST VA CLD +12 HR: 29/1010Z SFC/FL150 S0806 E11248 – S0757
E11253 – S0751 E11306 – S0805 E11322 – S0820 E11311 – S0814
E11253
FCST VA CLD +18 HR: 29/1610Z SFC/FL150 S0807 E11248 – S0757
E11252 – S0753 E11306 – S0806 E11322 – S0821 E11309
RMK: VA NOT IDENTIFIABLE ON SATELLITE IMAGERY DUE TO MET
CLOUD. RECENT GROUND REPORTS INDICATE INTERMITTENT DISCRETE
EMISSIONS ARE ONGOING. VA HEIGHT AND MOVEMENT BASED ON
GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20251229/0430Z=

Ibu Volcano Volcanic Ash Advisory: ERUPTION LAST REPORTED 28/1525Z EST VA DTG: 28/2120Z

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

FVAU01 at 21:36 UTC, 28/12/25 from ADRM
VA ADVISORY
DTG: 20251228/2140Z
VAAC: DARWIN
VOLCANO: IBU 268030
PSN: N0129 E12738
AREA: INDONESIA
SOURCE ELEV: 1325M AMSL
ADVISORY NR: 2025/1457
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: ERUPTION LAST REPORTED 28/1525Z
EST VA DTG: 28/2120Z
EST VA CLD: SFC/FL060 N0131 E12742 – N0127 E12742 – N0121
E12726 – N0129 E12719 – N0138 E12726 MOV W 05KT
FCST VA CLD +6 HR: 29/0320Z SFC/FL060 N0131 E12742 – N0127
E12742 – N0121 E12729 – N0129 E12721 – N0137 E12729
FCST VA CLD +12 HR: 29/0920Z SFC/FL060 N0131 E12742 – N0127
E12742 – N0121 E12728 – N0129 E12722 – N0137 E12728
FCST VA CLD +18 HR: 29/1520Z SFC/FL060 N0126 E12743 – N0122
E12729 – N0130 E12722 – N0137 E12730 – N0132 E12743
RMK: VA NOT IDENTIFIABLE ON CURRENT SATELLITE IMAGERY DUE TO
MET CLOUD. GROUND REPORTS INDICATE INTERMITTENT DISCRETE
EMISSIONS ARE ONGOING. VA HEIGHT AND MOVEMENT BASED ON PAST
SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20251229/0340Z=

Marapi Volcano Volcanic Ash Advisory: VA TO FL130 REPORTED AT 28/1633Z MOV N EST VA DTG: 28/1730Z to 13000 ft (4000 m)

Satellite image of Marapi volcano on 28 Dec 2025

Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin 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:

FVAU04 at 17:49 UTC, 28/12/25 from ADRM
VA ADVISORY
DTG: 20251228/1749Z
VAAC: DARWIN
VOLCANO: MARAPI 261140
PSN: S0023 E10028
AREA: INDONESIA
SOURCE ELEV: 2885M AMSL
ADVISORY NR: 2025/180
INFO SOURCE: CVGHM, HIMAWARI-9
ERUPTION DETAILS: VA TO FL130 REPORTED AT 28/1633Z MOV N
EST VA DTG: 28/1730Z
EST VA CLD: SFC/FL130 S0029 E10029 – S0023 E10019 – N0015
E10016 – N0015 E10100 – S0015 E10056 MOV N 05KT
FCST VA CLD +6 HR: 28/2330Z NO VA EXP
FCST VA CLD +12 HR: 29/0530Z NO VA EXP
FCST VA CLD +18 HR: 29/1130Z NO VA EXP
RMK: CVGHM REPORT VA TO 900M ABV SUMMIT. VA NOT IDENTIFIABLE
ON SATELLITE IMAGE. AREA OBSC BY MET CLD. EXPECTED TO
DISSIPATE IN 6 HRS. HEIGHT AND FCST BASED ON VONA AND MODEL
GUIDANCE.
NXT ADVISORY: NO LATER THAN 20251228/2349Z=