Semeru Volcanic Ash Advisory: ash plume to 15,000 ft (4,600 m) as of Oct 19, 21:10 UTC

Satellite image of Semeru volcano on 19 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 21:11 UTC, 19/10/26 from ADRM
VA ADVISORY
DTG: 20261019/2110Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2026/1198
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL150 OBS AT 19/2150Z MOV W
OBS VA DTG: 19/2110Z
OBS VA CLD: SFC/FL150 S0812 E11305 - S0830 E11207 - S0819
 E11143 - S0747 E11150 - S0726 E11216 - S0758 E11306 MOV W
 10KT
FCST VA CLD +6 HR: 20/0310Z SFC/FL150 S0803 E11304 - S0816
 E11300 - S0828 E11152 - S0813 E11144 - S0744 E11157 - S0723
 E11222
FCST VA CLD +12 HR: 20/0910Z SFC/FL150 S0811 E11302 - S0827
 E11205 - S0816 E11148 - S0742 E11154 - S0721 E11221 - S0758
 E11304
FCST VA CLD +18 HR: 20/1510Z SFC/FL150 S0812 E11302 - S0819
 E11146 - S0742 E11152 - S0719 E11224 - S0800 E11305
RMK: DISCRETE VA IDENTIFIABLE ON CURRENT SAT IMG. GROUND
 REPORTS INDICATE ERUPTIONS ARE ONGOING. VA HEIGHT AND
 MOVEMENT BASED ON SAT IMG, GROUND REPORTS AND MODEL
 GUIDANCE.
NXT ADVISORY: NO LATER THAN 20261020/0310Z=