Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 23000 ft (7000 m) altitude or flight level 230 and is moving at 15 kts in NW direction. The full report is as follows: FVFE01 at 12:00 UTC, 12/06/19 from RJTD VA ADVISORY DTG: 20190612/1200Z VAAC: TOKYO VOLCANO: KLYUCHEVSKOY 300260 PSN: N5603 E16039 AREA: RUSSIA…