Shiveluch (Kamchatka): 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 10 kts in SE direction. The full report is as follows: VA EMISSIONS CONTINUING OBS VA DTG:28/1120Z to 13000 ft (4000 m) …28 Apr: Explosive activity continues. Volcanic Ash…