An explosion was reported at Sakurajima at 04:40 UTC on 21 October 2026, but no volcanic ash cloud was identifiable in satellite data as of 04:30 UTC. No forecast ash cloud information is available.Original VAAC bulletin:FVFE01 at 04:52 UTC, 21/10/26 from RJTDVA ADVISORYDTG: 20261021/0452ZVAAC: TOKYOVOLCANO: SAKURAJIMA [AIRA CALDERA] 282080PSN: N3136 E13039AREA: JAPANSOURCE ELEV: 1117M AMSLADVISORY NR: 2026/297INFO SOURCE: JMA HIMAWARI-9ERUPTION DETAILS: EXPLODED AT 20261021/0440Z VA CLD UNKNOWNOBS VA DTG: 21/0430ZOBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND FL180 240/35KTFCST VA CLD +6 HR: NOT AVBLFCST VA CLD +12 HR: NOT AVBLFCST VA CLD +18 HR: NOT AVBLRMK: WE WILL ISSUE FURTHER ADVISORY IF VA IS DETECTED IN SATELLITE IMAGERY.NXT ADVISORY: NO FURTHER ADVISORIES=