Global-Affair.net

The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Dukono on 30 December 2025 (local). The alert level remained at „Level 2 – Alert“ (on a 4-level scale).
Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)

Current Alerts:
Observatory alert level: „Level 2 – Alert“ (on a 4-level scale)
Aviation Alert Level: unavailable or not collected

Adapted from: Smithsonian / USGS Daily Volcanic Activity Report for Dec 30, 2025

Satellite image of Semeru volcano on 31 Dec 2025

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

FVAU02 at 04:22 UTC, 31/12/25 from ADRM
VA ADVISORY
DTG: 20251231/0410Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2025/1495
INFO SOURCE: CVGHM, HIMAWARI-9, WEBCAM
ERUPTION DETAILS: VA ERUPTION LAST REPORTED AT 31/0009Z
EST VA DTG: 31/0350Z
EST VA CLD: SFC/FL150 S0802 E11251 – S0806 E11318 – S0826
E11313 – S0828 E11252 MOV SE 05KT
FCST VA CLD +6 HR: 31/0950Z SFC/FL150 S0810 E11251 – S0802
E11251 – S0748 E11311 – S0759 E11322 – S0814 E11322 – S0825
E11310
FCST VA CLD +12 HR: 31/1550Z SFC/FL150 S0810 E11251 – S0802
E11251 – S0748 E11311 – S0801 E11322 – S0818 E11320 – S0826
E11305
FCST VA CLD +18 HR: 31/2150Z SFC/FL150 S0810 E11251 – S0744
E11257 – S0753 E11318 – S0815 E11322 – S0830 E11304
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 SAT
IMG, GROUND REPORTS AND MODEL GUIDANCE. *ADVISORY CORRECTED
FOR +18HR FCST HEIGHT*
NXT ADVISORY: NO LATER THAN 20251231/1010Z=

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

FVXX22 at 03:56 UTC, 31/12/25 from KNES
VA ADVISORY
DTG: 20251231/0354Z

VAAC: WASHINGTON

VOLCANO: RUIZ 351020
PSN: N0453 W07519

AREA: COLOMBIA

SOURCE ELEV: 17319 FT AMSL

ADVISORY NR: 2025/589

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

ERUPTION DETAILS: VONA RCVD

EST VA DTG: 31/0320Z

EST VA CLD: SFC/FL190 N0454 W07519 – N0453 W07518
– N0444 W07522 – N0450 W07529 – N0454 W07519 MOV
SW 5KT

FCST VA CLD +6HR: 31/0930Z SFC/FL190 N0504 W07528
– N0454 W07519 – N0452 W07519 – N0453 W07534 –
N0504 W07528

FCST VA CLD +12HR: 31/1530Z NO VA EXP

FCST VA CLD +18HR: 31/2130Z NO VA EXP

RMK: RCNT VONA RPRT RCVD INDICATING VA EM MOVG
SW. VA NOT OBS IN STLT IMAGERY OR WEBCAM. VA FCST
THRU T+6 HRS BASED ON NWP MDL GUIDANCE BUT
LGT/VRBL FL WINDS EXP. …COVERDALE

NXT ADVISORY: WILL BE ISSUED BY 20251231/1000Z

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

FVAU02 at 22:08 UTC, 30/12/25 from ADRM
VA ADVISORY
DTG: 20251230/2210Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2025/1494
INFO SOURCE: CVGHM, HIMAWARI-9, WEBCAM
ERUPTION DETAILS: VA ERUPTION LAST REPORTED AT 30/1704Z
EST VA DTG: 30/2150Z
EST VA CLD: SFC/FL150 S0802 E11251 – S0802 E11319 – S0803
E11319 – S0823 E11317 – S0828 E11255 MOV SE 05KT
FCST VA CLD +6 HR: 31/0350Z SFC/FL150 S0802 E11251 – S0806
E11318 – S0826 E11313 – S0828 E11252
FCST VA CLD +12 HR: 31/0950Z SFC/FL150 S0802 E11251 – S0748
E11311 – S0759 E11322 – S0814 E11322 – S0825 E11310 – S0810
E11251
FCST VA CLD +18 HR: 31/1550Z SFC/FL150 S0802 E11251 – S0748
E11311 – S0801 E11322 – S0818 E11320 – S0826 E11305 – S0810
E11251
RMK: VA NOT IDENTIFIABLE ON SATELLITE IMAGERY DUE TO MET
CLOUD. RECENT GROUND REPORTS AND WEBCAM IMAGERY INDICATE
INTERMITTENT DISCRETE EMISSIONS ARE ONGOING. VA HEIGHT AND
MOVEMENT BASED ON GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20251231/0410Z=