Explosive 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 .The full report is as follows:FVAU02 at 22:58 UTC, 17/04/26 from ADRMVA ADVISORYDTG: 20260417/2300ZVAAC: DARWINVOLCANO: SEMERU 263300PSN: S0806 E11255AREA: INDONESIASOURCE ELEV: 3657M AMSLADVISORY NR: 2026/441INFO SOURCE: HIMAWARI-9, CVGHMERUPTION DETAILS: VA TO FL150 OBS AT 17/2240Z, MOV WOBS VA DTG: 17/2240ZOBS VA CLD: SFC/FL150 S0809 E11258 - S0821 E11132 - S0756 E11125 - S0733 E11142 - S0800 E11258 MOV W 10KTFCST VA CLD +6 HR: 18/0440Z SFC/FL150 S0808 E11258 - S0821 E11140 - S0758 E11130 - S0737 E11144 - S0800 E11258FCST VA CLD +12 HR: 18/1040Z SFC/FL150 S0807 E11259 - S0831 E11138 - S0813 E11125 - S0752 E11134 - S0759 E11258FCST VA CLD +18 HR: 18/1640Z SFC/FL150 S0807 E11259 - S0837 E11130 - S0817 E11120 - S0752 E11124 - S0800 E11257RMK: REGULAR DISCRETE VA EMISSIONS IDENTIFIABLE ON RGB SAT IMAGERY MOV W. VA HEIGHT AND MOVEMENT BASED ON SAT IMAGERY, GRND REPORTS AND MODEL GUIDANCE.NXT ADVISORY: NO LATER THAN 20260418/0500Z=