Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 18000 ft (5500 m) altitude or flight level 180 and is moving at 25 kts in E direction. The full report is as follows: FVAG01 at 23:45 UTC, 04/02/19 from SABM VA ADVISORY DTG: 20190204/2340Z VAAC: BUENOS AIRES VOLCANO: PLANCHON PETEROA 357040 PSN: S3513…