Karymsky (Kamchatka): (31 Mar) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 and is moving at 10 kts in S direction. The full report is as follows: POSS ERUPTION OBS AT 20190331/0030Z FL070 EXTD S OBS VA DTG:31/0110Z to 7000 ft (2100 m) Aso (central Kyushu, Japan):…