Satellite image of Semeru volcano on 25 Sep 2026Explosive 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 05:20 UTC, 25/09/26 from ADRMVA ADVISORYDTG: 20260925/0520ZVAAC: DARWINVOLCANO: SEMERU 263300PSN: S0806 E11255AREA: INDONESIASOURCE ELEV: 3657M AMSLADVISORY NR: 2026/1097INFO SOURCE: HIMAWARI-9, CVGHMERUPTION DETAILS: VA TO FL150 REPORTED AT 24/2356Z MOV SEEST VA DTG: 25/0500ZEST VA CLD: SFC/FL150 S0802 E11255 - S0814 E11322 - S0824 E11323 - S0825 E11314 - S0807 E11251 MOV SE 15KTFCST VA CLD +6 HR: 25/1100Z SFC/FL150 S0802 E11255 - S0812 E11322 - S0824 E11323 - S0827 E11312 - S0807 E11251FCST VA CLD +12 HR: 25/1700Z SFC/FL150 S0802 E11255 - S0812 E11322 - S0826 E11322 - S0828 E11307 - S0807 E11251FCST VA CLD +18 HR: 25/2300Z SFC/FL150 S0802 E11255 - S0811 E11322 - S0825 E11323 - S0828 E11309 - S0807 E11251RMK: VA NOT IDENTIFIABLE ON SATELLITE IMAGERY DUE TO MET CLOUD. REGULAR GROUND REPORTS INDICATE INTERMITTENT ERUPTIONS ARE ONGOING. HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE.NXT ADVISORY: NO LATER THAN 20260925/1120Z=