FVXX22 KNES 281251 VA ADVISORY DTG: 20120428/1250Z VAAC: WASHINGTON VOLCANO: REVENTADOR 1502-01 PSN: S0005 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2012/021 INFO SOURCE: GOES-13. SEISMIC DETECTION. ERUPTION DETAILS: PLUME SEEN IN FIRST VIS IMAGERY EXTNG W 15NM. HGT UNKN RMK: WE HAVE RECEIVED INFORMATION SUGGESTING A POSSIBLE VA EMISSION. WE WILL GATHER FURTHER INFORMATION AND ISSUE A FULL ADVISORY AS SOON AS POSSIBLE. NXT ADVISORY: AS SOON AS POSSIBLE NNNN