Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 23000 ft (7000 m) altitude or flight level 230 and is moving at 15 kts in SE direction. The full report is as follows: FVAG02 at 21:23 UTC, 21/07/19 from SABM VA ADVISORY DTG: 20190721/2130Z VAAC: BUENOS AIRES VOLCANO: UBINAS 354020 PSN: S1622 W07053 AREA:…