Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 12000 ft (3700 m) altitude or flight level 120 and is moving at 20 kts in NW direction. The full report is as follows: FVAU02 at 19:26 UTC, 21/07/19 from ADRM VA ADVISORY DTG: 20190721/1930Z VAAC: DARWIN VOLCANO: SANGEANG API 264050 PSN: S0812 E11904 AREA:…