FVXX21 KNES 172355 VA ADVISORY DTG: 20120217/2354Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 PSN: S0128 W07826 AREA: ECUADOR SUMMIT ELEV: 16480 FT (5023 M) ADVISORY NR: 2012/025 INFO SOURCE: GUAYAQUIL MWO. GEOPHYSICAL INST. ERUPTION DETAILS: VA OBSERVED 17/2317Z 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