USGS Volcano Notice for Aviation - DOI-USGS-AVO-2026-04-13T20:27:02+00:00

VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)

WMAK01 PAVO 132347   
VONA
DTG:                    20260413/2347Z
VOLCANO:                ATKA VOLCANIC COMPLEX 311160
PSN:                    N5220 W17408
AREA:                   ALASKA
SOURCE ELEV:            5030FT AMSL
NOTICE NR:              2026/03
CURRENT COLOUR CODE:    GREEN
PREVIOUS COLOUR CODE:   YELLOW
SVO:                    ALASKA VOLCANO OBSERVATORY
ACT STS:                DECREASED UNREST
ONSET:                  NIL
DUR:                    NIL
VA CLD HGT:             NO VA CLD PRODUCED
HGT SOURCE:             NO VA CLD PRODUCED
MOV:                    NO VA CLD PRODUCED
CTC:                    MATT HANEY SIC, USGS MHANEY@USGS.GOV (907) 786-7497 DAVID FEE, CS, UAFGI
                        DFEE1@ALASKA.EDU (907) 378-5460
RMK:                    DECREASED SEISMICITY AND SO2 GAS DETECTIONS.
NXT NOTICE:             A NEW VONA WILL BE ISSUED IF COND CHANGE SIGNIFICANTLY OR IF THE COLOR CODE CHANGES
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