Semeru Volcanic Ash Advisory: ash plume to 15,000 ft (4,600 m) as of Sep 15, 00:10 UTC

Satellite image of Semeru volcano on 15 Sep 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 00:30 UTC, 15/09/26 from ADRM
VA ADVISORY
DTG: 20260915/0030Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2026/1055
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL150 OBS AT 14/0010Z MOV SE
OBS VA DTG: 15/0010Z
OBS VA CLD: SFC/FL150 S0802 E11255 - S0820 E11327 - S0829
 E11325 - S0833 E11317 - S0807 E11251 MOV SE 20KT
FCST VA CLD +6 HR: 15/0610Z SFC/FL150 S0807 E11251 - S0802
 E11254 - S0813 E11324 - S0826 E11326 - S0831 E11314
FCST VA CLD +12 HR: 15/1210Z SFC/FL150 S0807 E11251 - S0801
 E11254 - S0808 E11323 - S0820 E11325 - S0826 E11314
FCST VA CLD +18 HR: 15/1810Z SFC/FL150 S0803 E11254 - S0814
 E11327 - S0824 E11327 - S0830 E11319 - S0807 E11251
RMK: VA IDENTIFIABLE ON RGB AND VIS SATELLITE IMAGERY.
 RECENT GROUND REPORTS INDICATE ONGOING DISCRETE EMISSIONS.
 HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND
 REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260915/0630Z=