Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 15000 ft (4600 m) altitude or flight level 150 and is moving at 5 kts in NW direction. The full report is as follows: FVFE01 at 08:40 UTC, 02/08/19 from RJTD VA ADVISORY DTG: 20190802/0839Z VAAC: TOKYO VOLCANO: KARYMSKY 300130 PSN: N5403 E15927 AREA: RUSSIA SUMMIT…