Shiveluch (Kamchatka): (21 Sep) 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 10 kts in SE direction. The full report is as follows: POSS ERUPTION OBS AT 20190921/0310Z FL150 EXTD SE OBS VA DTG:21/0340Z to 15000 ft (4600 m) Aso (central Kyushu,…
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