Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Tokyo warned of a volcanic ash plume rising to an estimated 16000 ft (4900 m), or flight level 160, and moving at 25 kts in E direction.Original VAAC bulletin:FVFE01 at 07:43 UTC, 18/08/26 from RJTDVA ADVISORYDTG: 20260818/0743ZVAAC: TOKYOVOLCANO: KLYUCHEVSKOY 300260PSN: N5603 E16039AREA: RUSSIASOURCE ELEV: 4754M AMSLADVISORY NR: 2026/16INFO SOURCE: HIMAWARI-9ERUPTION DETAILS: VA AT 20260818/0720Z FL160 EXTD EOBS VA DTG: 18/0720ZOBS VA CLD: SFC/FL160 N5604 E16038 - N5615 E16048 - N5603 E16204 - N5547 E16207 MOV E 25KTFCST VA CLD +6 HR: 18/1320Z SFC/FL160 N5439 E16626 - N5421 E16546 - N5525 E16301 - N5537 E16415FCST VA CLD +12 HR: 18/1920Z SFC/FL160 N5255 E16929 - N5240 E16805 - N5500 E16448 - N5518 E16626FCST VA CLD +18 HR: 19/0120Z SFC/FL150 N5237 E17112 - N5037 E17125 - N5115 E16938 - N5448 E16609 - N5455 E16744RMK: SOME PART OF VA OBSCURED BY MET CLOUD.NXT ADVISORY: 20260818/1200Z=