Semeru Volcanic Ash Advisory: ash plume to 15,000 ft (4,600 m) as of Oct 9, 00:00 UTC

Satellite image of Semeru volcano on 9 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 00:14 UTC, 09/10/26 from ADRM
VA ADVISORY
DTG: 20261009/0020Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2026/1154
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL150 OBS AT 09/0000Z, MOV ENE
OBS VA DTG: 09/0000Z
OBS VA CLD: SFC/FL150 S0809 E11252 - S0804 E11252 - S0754
 E11313 - S0802 E11321 - S0811 E11316 MOV NE 05KT
FCST VA CLD +6 HR: 09/0600Z SFC/FL150 S0803 E11252 - S0756
 E11316 - S0807 E11323 - S0817 E11313 - S0808 E11252
FCST VA CLD +12 HR: 09/1200Z SFC/FL150 S0804 E11252 - S0753
 E11315 - S0804 E11323 - S0814 E11317 - S0808 E11252
FCST VA CLD +18 HR: 09/1800Z SFC/FL150 S0808 E11252 - S0803
 E11252 - S0756 E11315 - S0807 E11323 - S0818 E11315
RMK: VA IDENTIFIABLE ON CURRENT SATELLITE IMAGERY. HEIGHT
 AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND
 MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20261009/0620Z=