Satellite image of Semeru volcano on 29 Dec 2025Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 15000 ft (4600 m) altitude or flight level 150 and is moving at 10 kts in SE direction.The full report is as follows:FVAU02 at 22:08 UTC, 29/12/25 from ADRMVA ADVISORYDTG: 20251229/2210ZVAAC: DARWINVOLCANO: SEMERU 263300PSN: S0806 E11255AREA: INDONESIASOURCE ELEV: 3657M AMSLADVISORY NR: 2025/1490INFO SOURCE: CVGHM, HIMAWARI-9, WEBCAMERUPTION DETAILS: VA TO FL150 LAST REPORTED AT 29/1908ZEST VA DTG: 29/2140ZEST VA CLD: SFC/FL150 S0806 E11251 - S0801 E11254 - S0807 E11318 - S0818 E11318 - S0823 E11307 MOV SE 10KTFCST VA CLD +6 HR: 30/0340Z SFC/FL150 S0806 E11252 - S0801 E11255 - S0807 E11318 - S0818 E11318 - S0824 E11306FCST VA CLD +12 HR: 30/0940Z SFC/FL150 S0806 E11251 - S0801 E11255 - S0807 E11318 - S0818 E11319 - S0824 E11306FCST VA CLD +18 HR: 30/1540Z SFC/FL150 S0808 E11253 - S0801 E11254 - S0800 E11319 - S0811 E11325 - S0822 E11314RMK: VA NOT IDENTIFIABLE ON SATELLITE IMAGERY DUE TO MET CLOUD. RECENT GROUND REPORTS INDICATE INTERMITTENT DISCRETE EMISSIONS ARE ONGOING. VA HEIGHT AND MOVEMENT BASED ON GROUND REPORTS AND MODEL GUIDANCE. PREVIOUS ADVISORY UPDATED DUE TO ERROR IN DTG.NXT ADVISORY: NO LATER THAN 20251230/0410Z=