Unrest has declined to background levels following the small explosion at Mount Gareloi on October 1, 2026, the Alaska Volcano Observatory (AVO) reported.
The minor explosion is interpreted as an isolated event related to persistent hydrothermal activity, rather than an indication of increased volcanic activity. The Aviation Color Code and Alert Level are being lowered to GREEN/NORMAL.
Dukono Volcanic Ash Advisory: ash plume to 7,000 ft (2,100 m) as of Oct 7, 00:40 UTC
Satellite image of Dukono volcano on 7 Oct 2026
Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 7000 ft (2100 m), or flight level 070.
Original VAAC bulletin:
FVAU01 at 00:57 UTC, 07/10/26 from ADRM
VA ADVISORY
DTG: 20261007/0100Z
VAAC: DARWIN
VOLCANO: DUKONO 268010
PSN: N0142 E12754
AREA: INDONESIA
SOURCE ELEV: 1229M AMSL
ADVISORY NR: 2026/844
INFO SOURCE: HIMAWARI-9
ERUPTION DETAILS: VA TO FL070 OBS AT 07/0040Z MOV NE
OBS VA DTG: 07/0040Z
OBS VA CLD: SFC/FL070 N0138 E12752 - N0143 E12749 - N0212
E12817 - N0206 E12840 - N0146 E12833 MOV NE 15KT
FCST VA CLD +6 HR: 07/0640Z SFC/FL070 N0138 E12753 - N0144
E12749 - N0212 E12811 - N0207 E12834 - N0146 E12834
FCST VA CLD +12 HR: 07/1240Z SFC/FL070 N0143 E12750 - N0209
E12816 - N0201 E12835 - N0142 E12830 - N0137 E12752
FCST VA CLD +18 HR: 07/1840Z SFC/FL070 N0138 E12751 - N0144
E12749 - N0144 E12750 - N0205 E12821 - N0154 E12841 - N0134
E12828
RMK: CONTINOUS VA IDENTIFIABLE ON SATELLITE IMAGERY MOVING
NE. VA HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY AND
MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20261007/0700Z=
Karangetang Volcanic Ash Advisory
Satellite image of Karangetang volcano on 6 Oct 2026
A ground observer reported volcanic ash at Karangetang at 19:12 UTC on 6 October, but the ash height is unknown and not identifiable on satellite imagery. The ash was estimated to be moving northeast at 15 knots as of 21:10 UTC.
Original VAAC bulletin:
FVAU06 at 21:27 UTC, 06/10/26 from ADRM
VA ADVISORY
DTG: 20261006/2127Z
VAAC: DARWIN
VOLCANO: KARANGETANG 267020
PSN: N0247 E12524
AREA: INDONESIA
SOURCE ELEV: 1797M AMSL
ADVISORY NR: 2026/9
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA REP FM GND AT 06/1912Z
EST VA DTG: 06/2110Z
EST VA CLD: SFC/FL080 N0244 E12524 - N0247 E12521 - N0254
E12529 - N0246 E12534 MOV NE 15KT
FCST VA CLD +6 HR: 07/0310Z NO VA EXP
FCST VA CLD +12 HR: 07/0910Z NO VA EXP
FCST VA CLD +18 HR: 07/1510Z NO VA EXP
RMK: GROUND OBSERVER REPORTING ERUPTION TO UNKNOWN HEIGHT AT
06/1912Z, VA UNIDENTIFIABLE ON SATELLITE IMAGERY. HEIGHT
BASED ON RECENT ERUPTIVE BEHAVIOUR. VA EXPECTED TO DISSIPATE
WITHIN 6 HOURS.
NXT ADVISORY: NO LATER THAN 20261007/0327Z=
Lewotolo Volcanic Ash Advisory: ash plume to 7,000 ft (2,100 m) as of Oct 6, 18:00 UTC
Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 7000 ft (2100 m), or flight level 070.
Original VAAC bulletin:
FVAU04 at 18:35 UTC, 06/10/26 from ADRM
VA ADVISORY
DTG: 20261006/1820Z
VAAC: DARWIN
VOLCANO: LEWOTOLOK 264230
PSN: S0816 E12330
AREA: INDONESIA
SOURCE ELEV: 1423M AMSL
ADVISORY NR: 2026/317
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL070 MOV NW
OBS VA DTG: 06/1800Z
OBS VA CLD: SFC/FL070 S0816 E12333 - S0820 E12331 - S0806
E12247 - S0749 E12303 MOV NW 15KT
FCST VA CLD +6 HR: 07/0000Z SFC/FL070 S0815 E12333 - S0819
E12331 - S0820 E12319 - S0807 E12247 - S0744 E12306
FCST VA CLD +12 HR: 07/0600Z SFC/FL070 S0815 E12332 - S0819
E12332 - S0820 E12319 - S0806 E12247 - S0748 E12304
FCST VA CLD +18 HR: 07/1200Z SFC/FL070 S0815 E12332 - S0818
E12332 - S0820 E12320 - S0806 E12248 - S0749 E12304
RMK: INTERMITTENT ERUPTION IDENTIFIABLE ON SATELLITE
IMAGERY. VA HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY
AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20261007/0020Z=
Sabancaya Volcanic Ash Advisory: no ash plume observed as of 6 Oct 2026, 13:40 UTC
As of 6 October 2026, 13:40 UTC, no volcanic ash was identified from satellite or webcam observations at Sabancaya. Only weak steam emissions were observed, and no further advisories are expected.
Original VAAC bulletin:
FVAG01 at 14:08 UTC, 06/10/26 from SABM
DTG: 20261006/1405Z
VAAC: BUENOS AIRES
VOLCANO: SABANCAYA 354006
PSN: S1547 W07150
AREA: PERU
SUMMIT ELEV: 19576 FT [5967 M]
ADVISORY NR: 2026/514
INFO SOURCE: GOES-E. GFS. WEBCAM. ARS.
AVIATION COLOUR CODE: NOT GIVEN
ERUPTION DETAILS: WEAK EMISSIONS OF WV
OBS VA DTG: 06/1340Z
OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE
DATA
FCST VA CLD +6 HR: 06/1940Z NO VA EXP
FCST VA CLD +12 HR: 07/0140Z NO VA EXP
FCST VA CLD +18 HR: 07/0740Z NO VA EXP
RMK: ALTHOUGH A PILOT REPORTED ASH TO FL230 AT
06/1229Z THERE WAS NO INDICATION OF ASH IN
SATELLITE IMAGERY THROUGH 1340Z UNDER CLEAR
SKIES. ... WEBCAM SHOWS SPORADIC AND WEAK
EMISSIONS OF STEAM.
...SMN
NXT ADVISORY: NO FURTHER ADVISORIES=