Schlagwort: volcano

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 02:07 UTC, 18/01/26 from ADRM
VA ADVISORY
DTG: 20260118/0207Z
VAAC: DARWIN
VOLCANO: LEWOTOLOK 264230
PSN: S0816 E12330
AREA: INDONESIA
SOURCE ELEV: 1423M AMSL
ADVISORY NR: 2026/27
INFO SOURCE: CVGHM, HIMAWARI-9
ERUPTION DETAILS: VA TO FL060 REPORTED MOV ENE AT 18/0147Z
EST VA DTG: 18/0150Z
EST VA CLD: SFC/FL060 S0820 E12325 – S0810 E12323 – S0737
E12422 – S0756 E12440 – S0819 E12434 MOV NE 25KT
FCST VA CLD +6 HR: 18/0750Z NO VA EXP
FCST VA CLD +12 HR: 18/1350Z NO VA EXP
FCST VA CLD +18 HR: 18/1950Z NO VA EXP
RMK: CVGHM REPORTED VA TO 400M ABV THE SUMMIT AT 18/0147Z.
VA NOT IDENTIFIABLE ON SAT IMAGERY DUE TO MET CLOUD. VA IS
EXPECTED TO DISSIPATE WITHIN 6HRS. HEIGHT AND MOV BASED ON
GROUND REPORT AND MODELS.
NXT ADVISORY: NO LATER THAN 20260118/0807Z=

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

FVFE01 at 21:06 UTC, 17/01/26 from RJTD
VA ADVISORY
DTG: 20260117/2106Z
VAAC: TOKYO
VOLCANO: MAYON 273030
PSN: N1315 E12341
AREA: PHILIPPINES
SOURCE ELEV: 2462M AMSL
ADVISORY NR: 2026/51
INFO SOURCE: HIMAWARI-9 PHIVOLCS
ERUPTION DETAILS: ERUPTION AT 20260117/2042Z VA CLD UNKNOWN REPORTED
OBS VA DTG: 17/2050Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND FL180 230/20KT

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=

Heightened dome activity at Mayon stood out today, driving dozens of pyroclastic flows and strong gas output. Kilauea and Great Sitkin held at Watch/Aviation ORANGE, while Indonesia featured frequent explosions at Ibu and Lewotolok. Compared to yesterday, notable status shifts included Sangay moving to increased eruptive activity, Pavlof reverting to unrest, and Lewotobi shifting from eruption to unrest.

United States
Great Sitkin (Watch / Aviation ORANGE) continued slow lava effusion within the summit crater. Kilauea (Watch / Aviation ORANGE) also sustained its eruption. In the Aleutians, Pavlof and Shishaldin remained in unrest (Advisory / Aviation Yellow).

Indonesia
Halmahera’s Ibu logged 103 explosions with ash-and-gas rising to 500 m, while Lewotolok produced 277 explosions and two rockfalls with plumes to 350 m. Dukono recorded three explosions; several others including Marapi, Merapi, and Semeru stayed active at Level 2–3. Unrest persisted at Gamalama and Kerinci, and Lewotobi emitted low gas-and-vapor plumes about 100 m above the vent.

Philippines
At Mayon (Alert Level 3), dome-collapse activity generated 72 pyroclastic density currents and 338 rockfalls; lava effusion increased, crater glow was visible, and SO2 averaged 4,970 t/d as RSAM spiked then eased. Evacuations totaled 4,139 people within the 6-km zone by late 16 January. Kanlaon remained at Alert Level 2, and Taal at Alert Level 1.

Mexico
Popocatepetl maintained low-level eruptive activity (Yellow Alert – Phase 2).

South America
Activity persisted at several Andean volcanoes: Ecuador’s Sangay shifted to increased eruptive activity, while nearby Reventador continued. Peru’s Sabancaya and Colombia’s Purace also remained in eruption.

Other
In Costa Rica, Poas saw activity increase (Level 2 – Warning; Aviation Yellow). Unrest was also elevated at Turrialba (Level 2 – Warning), and Rincon de la Vieja stayed at Level 2.

Source: Smithsonian/USGS GVP Daily Volcanic Activity Report (16 January 2026).

Activity Summary for 16 January 2026

Volcano	Country	Activity Type	Keynotes
Dukono	Indonesia	Eruption	3 seismically detected explosions; eruption ongoing.
Great Sitkin	United States	Eruption	Lava effusing slowly in summit crater.
Ibu	Indonesia	Eruption	103 explosions; ash/gas plumes to 500 m.
Kilauea	United States	Eruption	Eruption ongoing; Watch / Aviation ORANGE.
Kanlaon	Philippines	Eruption	Eruption ongoing; Alert Level 2 – Moderate Unrest.
Lewotolok	Indonesia	Eruption	277 explosions; ash/gas plumes to 350 m; 2 rockfalls.
Marapi	Indonesia	Eruption	Eruption ongoing; Alert Level 2 – Alert.
Mayon	Philippines	Eruption	72 PDCs from dome collapse; 338 rockfalls; SO2 4,970 t/d.
Merapi	Indonesia	Eruption	Eruption ongoing; Alert Level 3 – Standby.
Popocatepetl	Mexico	Eruption	Eruption ongoing; Yellow Alert – Phase 2.
Poas	Costa Rica	Eruption	Activity increased; Level 2 – Warning; Aviation Yellow.
Purace	Colombia	Eruption	Eruption ongoing; Alert Level Orange.
Reventador	Ecuador	Eruption	Eruption ongoing; Alert Level 3 – Orange.
Sabancaya	Peru	Eruption	Eruption ongoing; Alert Level Orange.
Sangay	Ecuador	Eruption	Activity increased; Alert Level 2 – Yellow.
Semeru	Indonesia	Eruption	Eruption ongoing; Level 3 – Standby.
Taal	Philippines	Eruption	Eruption ongoing; Alert Level 1 – Low-Level Unrest.
Gamalama	Indonesia	Unrest	Ongoing unrest; Level 2 – Alert.
Kerinci	Indonesia	Unrest	Ongoing unrest; Level 2 – Alert.
Lewotobi	Indonesia	Unrest	Gas-and-vapor plumes to 100 m; unrest ongoing.
Pavlof	United States	Unrest	Ongoing unrest; Advisory / Aviation Yellow.
Rincon de la Vieja	Costa Rica	Unrest	Ongoing unrest; Level 2 – Warning.
Shishaldin	United States	Unrest	Ongoing unrest; Advisory / Aviation Yellow.
Turrialba	Costa Rica	Unrest	Unrest increased; Level 2 – Warning.

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

FVAU03 at 12:11 UTC, 17/01/26 from ADRM
VA ADVISORY
DTG: 20260117/1210Z
VAAC: DARWIN
VOLCANO: LEWOTOLOK 264230
PSN: S0816 E12330
AREA: INDONESIA
SOURCE ELEV: 1423M AMSL
ADVISORY NR: 2026/25
INFO SOURCE: HIMAWARI-9 CVGHM
ERUPTION DETAILS: VA REPORTED TO FL060 AT 17/1145Z
EST VA DTG: 17/1150Z
EST VA CLD: SFC/FL060 S0817 E12331 – S0817 E12329 – S0816
E12328 – S0814 E12329 – S0813 E12332 – S0816 E12334 MOV NE
15KT
FCST VA CLD +6 HR: 17/1750Z NO VA EXP
FCST VA CLD +12 HR: 17/2350Z NO VA EXP
FCST VA CLD +18 HR: 18/0550Z NO VA EXP
RMK: VONA RECEIVED INDICATING ERUPTION TO 300M ABOVE SUMMIT.
VA NOT IDENTIFIABLE ON LATEST SAT IMAGERY DUE TO MET CLOUD.
VA HEIGHT AND FCST BASED ON LATEST SAT IMG, GROUND REPORT
AND MODEL GUIDANCE.VA EXPECTED TO DISSIPATE WITHIN 6 HOURS.
NXT ADVISORY: NO LATER THAN 20260117/1810Z=

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

FVAU02 at 09:02 UTC, 17/01/26 from ADRM
VA ADVISORY
DTG: 20260117/0900Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2026/67
INFO SOURCE: CVGHM
ERUPTION DETAILS: VA ERUPTION LAST REPORTED AT 16/2225Z
EST VA DTG: 17/0840Z
EST VA CLD: SFC/FL150 S0807 E11251 – S0801 E11253 – S0801
E11330 – S0824 E11325 MOV SE 10KT
FCST VA CLD +6 HR: 17/1440Z SFC/FL150 S0807 E11251 – S0802
E11252 – S0800 E11331 – S0822 E11328
FCST VA CLD +12 HR: 17/2040Z SFC/FL150 S0808 E11251 – S0802
E11251 – S0757 E11328 – S0820 E11327
FCST VA CLD +18 HR: 18/0240Z SFC/FL150 S0808 E11251 – S0802
E11250 – S0754 E11330 – S0820 E11328
RMK: VA NOT IDENTIFIABLE ON CURRENT SATELLITE IMAGERY DUE TO
MET CLOUD, HOWEVER RECENT GROUND REPORTS INDICATE
INTERMITTENT DISCRETE ERUPTIONS ARE ONGOING. VA HEIGHT AND
MOVEMENT BASED ON GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260117/1500Z=