Autor: global-affair

The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Dukono on 10 December 2025 (local). Ash and gas plume(s) were reported. There were seismically detected explosions reported. 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 10, 2025

The Japan Meteorological Agency (JMA) reported that the eruption continued at Aira on 10 December 2025 (local). There were 2 eruptions reported, one of which was an explosion, with ash plumes rising to a maximum of 1,800 m (5,900 ft) above the vent. The explosion ejected large volcanic bombs or blocks 300–600 m away from Minamidake Crater. The alert level remained at „Level 3 – Restriction on proximity to the volcano“ (on a 5-level scale).
Source: Japan Meteorological Agency (JMA)

Current Alerts:
Observatory alert level: „Level 3 – Restriction on proximity to the volcano“ (on a 5-level scale)
Aviation Alert Level: unavailable or not collected

Adapted from: Smithsonian / USGS Daily Volcanic Activity Report for Dec 10, 2025

Satellite image of Semeru volcano on 11 Dec 2025

Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 16000 ft (4900 m) altitude or flight level 160 and is moving at 05 kts in SE direction.
The full report is as follows:

FVAU02 at 09:18 UTC, 11/12/25 from ADRM
VA ADVISORY
DTG: 20251211/0920Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2025/1412
INFO SOURCE: CVGHM
ERUPTION DETAILS: VA TO FL160 LAST REPORTED AT 10/2341Z
EST VA DTG: 11/0900Z
EST VA CLD: SFC/FL160 S0804 E11255 – S0813 E11308 – S0823
E11305 – S0822 E11253 – S0806 E11252 MOV SE 05KT
FCST VA CLD +6 HR: 11/1500Z SFC/FL160 S0804 E11255 – S0813
E11309 – S0823 E11305 – S0822 E11253 – S0805 E11252
FCST VA CLD +12 HR: 11/2100Z SFC/FL160 S0804 E11255 – S0809
E11310 – S0822 E11308 – S0822 E11256 – S0806 E11252
FCST VA CLD +18 HR: 12/0300Z SFC/FL160 S0804 E11255 – S0809
E11310 – S0822 E11308 – S0822 E11256 – S0806 E11252
RMK: VA NOT IDENTIFIABLE ON SAT IMG DUE TO MET CLOUD COVER.
GROUND REPORTS INDICATE INTERMITTENT DISCRETE EMISSIONS
REMAIN ONGOING. LOW CONFIDENCE IN FORECAST DUE TO LIGHT AND
VRB WINDS. HEIGHT AND MOVEMENT BASED ON GROUND REPORTS AND
MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20251211/1520Z=

Satellite image of Sakurajima volcano on 11 Dec 2025

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

FVFE01 at 00:33 UTC, 11/12/25 from RJTD
VA ADVISORY
DTG: 20251211/0033Z
VAAC: TOKYO
VOLCANO: SAKURAJIMA [AIRA CALDERA] 282080
PSN: N3136 E13039
AREA: JAPAN
SOURCE ELEV: 1117M AMSL
ADVISORY NR: 2025/480
INFO SOURCE: JMA HIMAWARI-9
ERUPTION DETAILS: ERUPTED AT 20251211/0020Z OVER FL070 EXTD E
OBS VA DTG: 11/0010Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND FL180 270/65KT

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=