Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 17000 ft (5200 m) altitude or flight level 170 .The full report is as follows:FVXX23 at 02:53 UTC, 21/04/26 from KNESVA ADVISORYDTG: 20260421/0251ZVAAC: WASHINGTONVOLCANO: REVENTADOR 352010PSN: S0004 W07739AREA: ECUADORSOURCE ELEV: 11686 FT AMSLADVISORY NR: 2026/381INFO SOURCE: GOES-19. VONA. WEBCAM. NWP MODELS. ERUPTION DETAILS: OBS VA DTG: 21/0220ZOBS VA CLD: SFC/FL170 N0005 W07722 - S0001 W07719- S0004 W07739 - S0004 W07740 - N0005 W07722 MOVE 10KT FCST VA CLD +6HR: 21/0830Z SFC/FL170 N0002 W07719- S0008 W07718 - S0004 W07739 - S0004 W07739 -N0002 W07719 FCST VA CLD +12HR: 21/1430Z SFC/FL170 S0001W07722 - S0007 W07722 - S0004 W07740 - S0004W07739 - S0001 W07722 FCST VA CLD +18HR: 21/2030Z SFC/FL170 S0001W07722 - S0007 W07722 - S0005 W07739 - S0004W07740 - S0001 W07722 RMK: VA DETECTED ON STLT MOVG ENE OF SUMMIT. VONAINDICATES VA EMS. MDL WINDS AT FL FCST TO VEERNXT 6 HR BECMG MORE FM THE W. ...KONONNXT ADVISORY: WILL BE ISSUED BY 20260421/0845Z