FVXX20 KNES 231839 VA ADVISORY DTG: 20120123/1838Z VAAC: WASHINGTON VOLCANO: SANGAY 1502-09 PSN: S0201 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT (5230 M) ADVISORY NR: 2012/004 INFO SOURCE: GUAYAQUIL MWO. PILOT REPORT. ERUPTION DETAILS: VA SEEN AT 23/1723Z AND 1754Z 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