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Satellite image of Sakurajima volcano on 4 Oct 2026

An explosion was reported at Sakurajima at 16:23 UTC on 4 October 2026, but no volcanic ash cloud was identifiable in satellite data as of 16:20 UTC. No forecast information is available.
Original VAAC bulletin:

FVFE01 at 16:40 UTC, 04/10/26 from RJTD
VA ADVISORY
DTG: 20261004/1640Z
VAAC: TOKYO
VOLCANO: SAKURAJIMA [AIRA CALDERA] 282080
PSN: N3136 E13039
AREA: JAPAN
SOURCE ELEV: 1117M AMSL
ADVISORY NR: 2026/260
INFO SOURCE: JMA HIMAWARI-9
ERUPTION DETAILS: EXPLODED AT 20261004/1623Z FL110 STNR
OBS VA DTG: 04/1620Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND FL110 250/7KT
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=

Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Washington warned of a volcanic ash plume rising to an estimated 22000 ft (6700 m), or flight level 220, and moving at 10 kts in NW direction.
Original VAAC bulletin:

FVXX25 at 11:15 UTC, 04/10/26 from KNES
VA ADVISORY
DTG: 20261004/1113Z

VAAC: WASHINGTON

VOLCANO: SANGAY 352090
PSN: S0200 W07820

AREA: ECUADOR

SOURCE ELEV: 17342 FT AMSL

ADVISORY NR: 2026/648

INFO SOURCE: GOES-19. NWP MODELS. 

ERUPTION DETAILS: FREQUENT VA EMS

OBS VA DTG: 04/1040Z

OBS VA CLD: SFC/FL220 S0141 W07842 - S0143 W07840
- S0145 W07844 - S0143 W07846 - S0141 W07842 MOV
NW 10KT SFC/FL220 S0126 W07914 - S0128 W07911 -
S0132 W07915 - S0130 W07919 - S0126 W07914 MOV NW
10KT 

FCST VA CLD +6HR: 04/1630Z SFC/FL220 S0134 W07832
- S0201 W07820 - S0201 W07820 - S0136 W07838 -
S0134 W07832 

FCST VA CLD +12HR: 04/2230Z SFC/FL220 S0133
W07831 - S0201 W07820 - S0201 W07820 - S0135
W07837 - S0133 W07831 

FCST VA CLD +18HR: 05/0430Z SFC/FL220 S0133
W07830 - S0201 W07820 - S0201 W07820 - S0134
W07835 - S0133 W07830 

RMK: DISCRETE VA EMS OBS IN STLT IMG EXT APRX
70NM NW FM SUMMIT. NW MVMT EXP THRU T+18. FCST
BASED ON STLT AND MDL WINDS. ...GATLING

NXT ADVISORY: WILL BE ISSUED BY 20261004/1715Z

Satellite image of Dukono volcano on 4 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, and moving at 20 kts in E direction.
Original VAAC bulletin:

FVAU01 at 07:01 UTC, 04/10/26 from ADRM
VA ADVISORY
DTG: 20261004/0701Z
VAAC: DARWIN
VOLCANO: DUKONO 268010
PSN: N0142 E12754
AREA: INDONESIA
SOURCE ELEV: 1229M AMSL
ADVISORY NR: 2026/833
INFO SOURCE: HIMAWARI-9
ERUPTION DETAILS: VA TO FL070 EXTD EAST
OBS VA DTG: 04/0640Z
OBS VA CLD: SFC/FL070 N0139 E12751 - N0145 E12750 - N0206
 E12816 - N0159 E12917 - N0137 E12920 MOV E 20KT
FCST VA CLD +6 HR: 04/1240Z SFC/FL070 N0140 E12752 - N0140
 E12752 - N0144 E12750 - N0204 E12802 - N0227 E12848 - N0217
 E12913 - N0156 E12925 - N0135 E12925
FCST VA CLD +12 HR: 04/1840Z SFC/FL070 N0143 E12751 - N0204
 E12802 - N0227 E12848 - N0217 E12912 - N0156 E12926 - N0136
 E12925 - N0139 E12753
FCST VA CLD +18 HR: 05/0040Z SFC/FL070 N0144 E12751 - N0204
 E12802 - N0226 E12848 - N0216 E12913 - N0157 E12926 - N0136
 E12926 - N0139 E12752
RMK: CONTINUOUS VA ERUPTION IDENTIFIABLE ON VIS SATELLITE
 IMAGERY. HEIGHT AND MOVEMENT BASED ON RECENT SATELLITE
 IMAGERY AND MODEL GUIDANCE.**ADV UPDATED**
NXT ADVISORY: NO LATER THAN 20261004/1301Z=

Satellite image of Ibu volcano on 4 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:

FVAU03 at 03:59 UTC, 04/10/26 from ADRM
VA ADVISORY
DTG: 20261004/0400Z
VAAC: DARWIN
VOLCANO: IBU 268030
PSN: N0129 E12738
AREA: INDONESIA
SOURCE ELEV: 1325M AMSL
ADVISORY NR: 2026/1125
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL070 MOV E
OBS VA DTG: 04/0340Z
OBS VA CLD: SFC/FL070 N0126 E12737 - N0132 E12735 - N0151
 E12814 - N0133 E12823 - N0119 E12818 MOV E 10KT
FCST VA CLD +6 HR: 04/0940Z SFC/FL070 N0126 E12737 - N0132
 E12736 - N0152 E12816 - N0136 E12823 - N0117 E12819
FCST VA CLD +12 HR: 04/1540Z SFC/FL070 N0126 E12737 - N0132
 E12736 - N0151 E12816 - N0135 E12823 - N0119 E12818
FCST VA CLD +18 HR: 04/2140Z SFC/FL070 N0131 E12736 - N0151
 E12816 - N0135 E12823 - N0119 E12818 - N0126 E12737
RMK: NTERMITTENT ERUPTIONS IDENTIFIABLE ON SATELLITE
 IMAGERY. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY,
 GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20261004/1000Z=