Autor: global-affair

Satellite image of Semeru volcano on 27 Jan 2026

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 15 kts in SE direction.
The full report is as follows:

FVAU02 at 18:33 UTC, 27/01/26 from ADRM
VA ADVISORY
DTG: 20260127/1840Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2026/110
INFO SOURCE: CVGHM, HIMAWARI-9
ERUPTION DETAILS: VA TO FL150 LAST REPORTED AT 27/1357Z
EST VA DTG: 27/1820Z
EST VA CLD: SFC/FL150 S0807 E11253 – S0803 E11254 – S0803
E11324 – S0824 E11318 MOV SE 15KT
FCST VA CLD +6 HR: 28/0020Z SFC/FL150 S0803 E11254 – S0804
E11324 – S0828 E11311 – S0807 E11252
FCST VA CLD +12 HR: 28/0620Z SFC/FL150 S0807 E11252 – S0803
E11255 – S0808 E11325 – S0820 E11322 – S0828 E11310
FCST VA CLD +18 HR: 28/1220Z SFC/FL150 S0807 E11252 – S0803
E11255 – S0805 E11325 – S0828 E11312
RMK: VA NOT IDENTIFIABLE ON CURRENT SAT IMAGE DUE TO MET
CLOUD. HOWEVER, GROUND REPORTS INDICATED INTERMITTENT
DISCRETE EMISSIONS ARE ONGOING. VA HEIGHT AND MOVEMENT BASED
ON GROUND REPORT AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260128/0040Z=

Satellite image of Lewotolo volcano on 27 Jan 2026

Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 6000 ft (1800 m) altitude or flight level 060 .
The full report is as follows:

FVAU03 at 15:16 UTC, 27/01/26 from ADRM
VA ADVISORY
DTG: 20260127/1516Z
VAAC: DARWIN
VOLCANO: LEWOTOLOK 264230
PSN: S0816 E12330
AREA: INDONESIA
SOURCE ELEV: 1423M AMSL
ADVISORY NR: 2026/45
INFO SOURCE: CVGHM, HIMAWARI-9
ERUPTION DETAILS: VA TO FL060 REP FM GND AT 27/1253, MOV E
EST VA DTG: 27/1500Z
EST VA CLD: SFC/FL060 S0820 E12325 – S0809 E12324 – S0751
E12430 – S0833 E12430 MOV E 25KT
FCST VA CLD +6 HR: 27/2100Z NO VA EXP
FCST VA CLD +12 HR: 28/0300Z NO VA EXP
FCST VA CLD +18 HR: 28/0900Z NO VA EXP
RMK: VA NOT IDENTIFIABLE ON SAT IMAGERY DUE TO MET CLOUD. VA
HEIGHT AND MOVEMENT BASED ON GND REPORT AND MODEL GUIDANCE.
VA LIKELY TO DISSIPATE IN 6HRS.
NXT ADVISORY: NO LATER THAN 20260127/2116Z=

Lava effusion, dome growth, and minor Strombolian bursts at Mayon stood out today. Guatemala’s Fuego produced frequent explosions—up to 10 per hour—while Ecuador’s Sangay tallied hundreds of blasts and Peru’s Sabancaya showed a clear uptick. In the United States, Kilauea and Great Sitkin both held at Watch with Aviation Orange.

United States
Kilauea and Great Sitkin kept steady eruption status (Watch / Aviation ORANGE). Shishaldin remained in unrest (Advisory / Aviation YELLOW).

Indonesia
Explosive activity was notable at Ibu (102 explosions; ash to 800 m) and Semeru (108 explosions). Lewotolok recorded 191 explosions with only very low ash near the vent, while Dukono and Marapi produced modest ash plumes. Slope instability and degassing persisted at Merapi, with 111 rockfalls. Unrest continued at Iliwerung, Kerinci, and Raung. Lewotobi remained at an elevated alert, and gas rose about 100 m at Karangetang.

Japan
Yakedake showed increased unrest; a Level 2 restriction remained in place near the crater.

Philippines
Mayon maintained dome growth with active lava effusion and minor Strombolian bursts. Seismic monitoring tallied numerous rockfalls and events linked to pyroclastic density currents, and a persistent crater glow was visible.

Mexico
Popocatepetl emitted gas and steam, and a M1.1 volcano-tectonic quake was recorded; the alert stayed at Yellow Phase 2.

South America
In Ecuador, Sangay produced 297 explosions with ash rising to 1.5 km, while Reventador generated 36 blasts and ash to 1 km. Peru’s Sabancaya increased, with three explosions sending plumes to 2.5 km and a thermal anomaly detected.

Other
Guatemala’s Fuego was highly explosive at times, with up to 10 explosions per hour, incandescent ejections to 300 m, and ash plumes near 1 km. In Costa Rica, Poas remained in eruption (Level 2 – Warning; Aviation Yellow), while Rincon de la Vieja and Turrialba stayed at Level 2 – Warning.

Source: Smithsonian/USGS GVP Daily Volcanic Activity Report (26 January 2026).

Activity Summary for 26 January 2026