Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 13000 ft (4000 m) altitude or flight level 130 and is moving at 25 kts in SW direction. The full report is as follows: FVFE01 at 01:12 UTC, 09/04/19 from RJTD VA ADVISORY DTG: 20190409/0112Z VAAC: TOKYO VOLCANO: SHEVELUCH 300270 PSN: N5639 E16122 AREA: RUSSIA SUMMIT…