USGS Volcano Notice for Aviation - DOI-USGS-AVO-2026-07-16T12:42:57+00:00

VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)

WMAK01 PAVO 161303   
VONA
DTG:                    20260716/1303Z
VOLCANO:                ATKA VOLCANIC COMPLEX 311160
PSN:                    N5220 W17408
AREA:                   ALASKA
SOURCE ELEV:            5030FT AMSL
NOTICE NR:              2026/04
CURRENT COLOUR CODE:    YELLOW
PREVIOUS COLOUR CODE:   GREEN
SVO:                    ALASKA VOLCANO OBSERVATORY
ACT STS:                ERUPTION OCCURRED
ONSET:                  20260716/1155Z
DUR:                    10 MIN
VA CLD HGT:             UNKNOWN
HGT SOURCE:             SATELLITE
MOV:                    NO VA CLD PRODUCED
CTC:                    MATT HANEY SIC, USGS MHANEY@USGS.GOV (907) 786-7497 JESS LARSEN, ACTING-CS, UAFGI
                        JFLARSEN@ALASKA.EDU...
RMK:                    SMALL EXPLOSION DETECTED FROM KOROVIN VOLCANO. NO VA OBS ABV LOW MET CLD. NO ONGOING
                        ACTIVITY EXPECTED.
NXT NOTICE:             A NEW VONA WILL BE ISSUED IF COND CHANGE SIGNIFICANTLY OR IF THE COLOR CODE CHANGES
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