On 12/21/2025 5:53:56 PM, an earthquake occurred in Philippines potentially affecting 2 thousand in MMI IV. The earthquake had Magnitude 5.6M, Depth:9km.
Semeru Volcano Volcanic Ash Advisory: VA TO FL150 LAST REPORTED 21/1440Z EST VA DTG: 21/1650Z to 15000 ft (4600 m)
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:
FVAU02 at 17:00 UTC, 21/12/25 from ADRM
VA ADVISORY
DTG: 20251221/1710Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2025/1456
INFO SOURCE: CVGHM, HIMAWARI-9
ERUPTION DETAILS: VA TO FL150 LAST REPORTED 21/1440Z
EST VA DTG: 21/1650Z
EST VA CLD: SFC/FL150 S0810 E11254 – S0806 E11250 – S0746
E11300 – S0800 E11315 MOV NE 10KT
FCST VA CLD +6 HR: 21/2250Z SFC/FL150 S0810 E11254 – S0806
E11250 – S0746 E11257 – S0758 E11313
FCST VA CLD +12 HR: 22/0450Z SFC/FL150 S0810 E11254 – S0806
E11250 – S0746 E11257 – S0758 E11312
FCST VA CLD +18 HR: 22/1050Z SFC/FL150 S0810 E11254 – S0806
E11250 – S0746 E11257 – S0758 E11312
RMK: VA NOT IDENTIFIABLE ON LATEST 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 20251221/2310Z=
Fuego Volcano Volcanic Ash Advisory: ONGOING VA EM to 15000 ft (4600 m)
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 14:27 UTC, 21/12/25 from KNES
VA ADVISORY
DTG: 20251221/1424Z
VAAC: WASHINGTON
VOLCANO: FUEGO 342090
PSN: N1428 W09052
AREA: GUATEMALA
SOURCE ELEV: 12346 FT AMSL
ADVISORY NR: 2025/698
INFO SOURCE: GOES-19. NWP MODELS.
ERUPTION DETAILS: ONGOING VA EM
OBS VA DTG: 21/1340Z
OBS VA CLD: SFC/FL150 N1428 W09052 – N1427 W09052
– N1419 W09111 – N1426 W09114 – N1428 W09052 MOV
W 10KT
FCST VA CLD +6HR: 21/1930Z SFC/FL150 N1428 W09052
– N1427 W09052 – N1413 W09115 – N1423 W09120 –
N1428 W09052
FCST VA CLD +12HR: 22/0130Z SFC/FL150 N1428
W09052 – N1427 W09052 – N1413 W09116 – N1423
W09120 – N1428 W09052
FCST VA CLD +18HR: 22/0730Z SFC/FL150 N1428
W09052 – N1427 W09051 – N1410 W09114 – N1422
W09119 – N1428 W09052
RMK: VA EM SEEN IN STLT IMG MOVNG WSW AT APX 20
NMI FM SUMMIT. EXP CONT WSW MOVNT THRU T+18 HRS.
FL AND FCST BSD ON NWP MDLS. …LINER
NXT ADVISORY: WILL BE ISSUED BY 20251221/2030Z
Green earthquake (Magnitude 5.6M, Depth:54.947km) in Indonesia 21/12/2025 12:21 UTC, 3 thousand in MMI IV.
Ibu Volcano Volcanic Ash Advisory: VA TO FL070 OBSERVED 21/0030Z MOV E EST VA DTG: 21/0310Z to 7000 ft (2100 m)
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 .
The full report is as follows:
FVAU01 at 03:31 UTC, 21/12/25 from ADRM
VA ADVISORY
DTG: 20251221/0336Z
VAAC: DARWIN
VOLCANO: IBU 268030
PSN: N0129 E12738
AREA: INDONESIA
SOURCE ELEV: 1325M AMSL
ADVISORY NR: 2025/1423
INFO SOURCE: CVGHM, HIMAWARI-9
ERUPTION DETAILS: VA TO FL070 OBSERVED 21/0030Z MOV E
EST VA DTG: 21/0310Z
EST VA CLD: SFC/FL070 N0127 E12736 – N0132 E12736 – N0138
E12757 – N0131 E12803 – N0123 E12758 MOV E 15KT
FCST VA CLD +6 HR: 21/0910Z SFC/FL070 N0127 E12737 – N0131
E12737 – N0139 E12758 – N0130 E12803 – N0120 E12758
FCST VA CLD +12 HR: 21/1510Z SFC/FL070 N0127 E12736 – N0131
E12736 – N0137 E12758 – N0129 E12803 – N0120 E12758
FCST VA CLD +18 HR: 21/2110Z SFC/FL070 N0129 E12734 – N0135
E12741 – N0129 E12803 – N0115 E12759 – N0114 E12747
RMK: VA IDENTIFIABLE ON RECENT SATELLITE IMAGERY. VA HEIGHT
AND MOVEMENT BASED ON H9 SATELLITE IMAGERY, GROUND REPORTS
AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20251221/0936Z=