Semeru Volcanic Ash Advisory: ash plume to 15,000 ft (4,600 m) as of Oct 13, 00:00 UTC

Satellite image of Semeru volcano on 13 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 00:16 UTC, 13/10/26 from ADRM
VA ADVISORY
DTG: 20261013/0020Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2026/1170
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL150 OBS AT 13/0000Z MOV W
OBS VA DTG: 13/0000Z
OBS VA CLD: SFC/FL150 S0809 E11258 - S0828 E11201 - S0747
 E11201 - S0802 E11258 MOV W 10KT
FCST VA CLD +6 HR: 13/0600Z SFC/FL150 S0809 E11258 - S0823
 E11158 - S0746 E11203 - S0802 E11258
FCST VA CLD +12 HR: 13/1200Z SFC/FL150 S0809 E11258 - S0823
 E11159 - S0746 E11203 - S0802 E11258
FCST VA CLD +18 HR: 13/1800Z SFC/FL150 S0810 E11258 - S0809
 E11159 - S0738 E11212 - S0802 E11300
RMK: VA OBS MOV W ON RECENT SATELLITE IMAGERY. CVGHM REPORT
 REGULAR VA EMISISONS UP TO 1000M ABV SUMMIT. HEIGHT AND MOV
 BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL
 GUIDANCE.
NXT ADVISORY: NO LATER THAN 20261013/0620Z=