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Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 9000 ft (2700 m), or flight level 090.
Original VAAC bulletin:

FVAU01 at 10:04 UTC, 07/10/26 from ADRM
VA ADVISORY
DTG: 20261007/1010Z
VAAC: DARWIN
VOLCANO: DUKONO 268010
PSN: N0142 E12754
AREA: INDONESIA
SOURCE ELEV: 1229M AMSL
ADVISORY NR: 2026/846
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL090 OBS AT 07/0950Z MOV NE
OBS VA DTG: 07/0950Z
OBS VA CLD: SFC/FL090 N0138 E12749 - N0145 E12747 - N0217
 E12806 - N0212 E12836 - N0152 E12843 - N0132 E12829 MOV NE
 10KT
FCST VA CLD +6 HR: 07/1550Z SFC/FL090 N0136 E12748 - N0144
 E12743 - N0214 E12810 - N0208 E12834 - N0150 E12842 - N0131
 E12829
FCST VA CLD +12 HR: 07/2150Z SFC/FL090 N0139 E12749 - N0145
 E12747 - N0211 E12818 - N0202 E12833 - N0144 E12838 - N0131
 E12830
FCST VA CLD +18 HR: 08/0350Z SFC/FL090 N0140 E12748 - N0146
 E12747 - N0210 E12813 - N0207 E12832 - N0147 E12839 - N0146
 E12839 - N0132 E12831
RMK: CONTINOUS VA IDENTIFIABLE ON SATELLITE IMAGERY MOVING
 E. VA HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY AND
 MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20261007/1610Z=

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.

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=

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=