Satellite image of Ibu volcano on 21 Aug 2026Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 7000 ft (2100 m), or flight level 070, and moving at 10 kts in SE direction.Original VAAC bulletin:FVAU03 at 08:11 UTC, 21/08/26 from ADRMVA ADVISORYDTG: 20260821/0810ZVAAC: DARWINVOLCANO: IBU 268030PSN: N0129 E12738AREA: INDONESIASOURCE ELEV: 1325M AMSLADVISORY NR: 2026/946INFO SOURCE: HIMAWARI-9, CVGHMERUPTION DETAILS: VA OBS TO FL070 AT 21/0740ZOBS VA DTG: 21/0740ZOBS VA CLD: SFC/FL070 N0130 E12735 - N0134 E12739 - N0121 E12803 - N0106 E12759 - N0106 E12743 MOV SE 10KTFCST VA CLD +6 HR: 21/1340Z SFC/FL070 N0130 E12735 - N0134 E12739 - N0124 E12805 - N0108 E12803 - N0105 E12744FCST VA CLD +12 HR: 21/1940Z SFC/FL070 N0130 E12735 - N0134 E12739 - N0127 E12807 - N0112 E12803 - N0105 E12750FCST VA CLD +18 HR: 22/0140Z SFC/FL070 N0130 E12735 - N0134 E12739 - N0130 E12808 - N0113 E12806 - N0105 E12750RMK: VA PARTIALLY DISCERNIBLE ON LATEST SATELLITE IMAGERY. GROUND REPORT OF VA TO FL070 AT 21/0630Z. VA HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE.NXT ADVISORY: NO LATER THAN 20260821/1410Z=