USGS Volcano Notice for Aviation - DOI-USGS-AVO-2026-03-15T01:31:03+00:00

VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)

WMAK01 PAVO 150136   
VONA
DTG:                    20260315/0136Z
VOLCANO:                ATKA VOLCANIC COMPLEX 311160
PSN:                    N5220 W17408
AREA:                   ALASKA
SOURCE ELEV:            5030FT AMSL
NOTICE NR:              2026/02
CURRENT COLOUR CODE:    YELLOW
PREVIOUS COLOUR CODE:   ORANGE
SVO:                    ALASKA VOLCANO OBSERVATORY
ACT STS:                HEIGHTENED UNREST
ONSET:                  NIL
DUR:                    NIL
VA CLD HGT:             NO VA CLD PRODUCED
HGT SOURCE:             NO VA CLD PRODUCED
MOV:                    UNKNOWN
CTC:                    CHRIS WAYTHOMAS, ACTING SIC, USGS CWAYTHOMAS@USGS.GOV (907) 786-7497 DAVID FEE, CS,
                        UAFGI DFEE1@ALASK...
RMK:                    CORRECTION: COLOR CODE TO YELLLOW. INCREASE IN SEISMIC ACTIVITY AND SO2 EMISSIONS
                        DETECTED.
NXT NOTICE:             A NEW VONA WILL BE ISSUED IF COND CHANGE SIGNIFICANTLY OR IF THE COLOR CODE CHANGES
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