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 22:54 UTC, 23/04/26 from ADRMVA ADVISORYDTG: 20260423/2300ZVAAC: DARWINVOLCANO: SEMERU 263300PSN: S0806 E11255AREA: INDONESIASOURCE ELEV: 3657M AMSLADVISORY NR: 2026/465INFO SOURCE: CVGHM, HIMAWARI-9ERUPTION DETAILS: VA TO FL150 OBS AT 23/2240Z MOV SWOBS VA DTG: 23/2240ZOBS VA CLD: SFC/FL150 S0801 E11254 - S0804 E11301 - S0842 E11254 - S0842 E11229 - S0820 E11220 MOV SW 05KTFCST VA CLD +6 HR: 24/0440Z SFC/FL150 S0801 E11255 - S0805 E11301 - S0837 E11250 - S0832 E11230 - S0813 E11222FCST VA CLD +12 HR: 24/1040Z SFC/FL150 S0801 E11256 - S0806 E11301 - S0836 E11242 - S0827 E11223 - S0809 E11219FCST VA CLD +18 HR: 24/1640Z SFC/FL150 S0802 E11258 - S0809 E11300 - S0837 E11232 - S0825 E11210 - S0804 E11219RMK: DISTRETE VA EMISSION IDENTIFIABLE ON RGB SAT IMG MOV SSW. GROUND REPORTS INDICATE INTERMITTENT VA EMISSIONS ARE ONGOING. VA HEIGHT AND MOVEMENT BASED ON SAT IMG, GND REPORTS AND MODEL GUIDANCE.NXT ADVISORY: NO LATER THAN 20260424/0500Z=