Semeru Volcanic Ash Advisory: ash plume to 15,000 ft (4,600 m) as of Oct 8, 00:00 UTC

Satellite image of Semeru volcano on 8 Oct 2026

Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 15000 ft (4600 m), or flight level 150.
Original VAAC bulletin:

FVAU02 at 00:19 UTC, 08/10/26 from ADRM
VA ADVISORY
DTG: 20261008/0020Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2026/1150
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL150 OBS AT 08/0000Z
OBS VA DTG: 08/0000Z
OBS VA CLD: SFC/FL150 S0824 E11249 - S0817 E11234 - S0803
 E11235 - S0748 E11304 - S0755 E11318 - S0811 E11318 MOV W
 05KT
FCST VA CLD +6 HR: 08/0600Z SFC/FL150 S0823 E11250 - S0815
 E11233 - S0759 E11234 - S0735 E11304 - S0741 E11325 - S0759
 E11329
FCST VA CLD +12 HR: 08/1200Z SFC/FL150 S0810 E11253 - S0802
 E11250 - S0742 E11307 - S0752 E11324 - S0809 E11318
FCST VA CLD +18 HR: 08/1800Z SFC/FL150 S0807 E11252 - S0802
 E11251 - S0749 E11310 - S0759 E11320 - S0759 E11320 - S0814
 E11313
RMK: DISCRETE VA EMISSION IDENTIFIABLE ON SATELLITE IMAGERY
 MOV W. RECENT GROUND REPORTS INDICATE ONGOING DISCRETE
 EMISSIONS. VA HEIGHT AND MOVEMENT BASED ON GROUND REPORTS,
 HIMAWARI-9 SAT AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20261008/0620Z=