|(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)|
|(3) Volcano:||Klyuchevskoy (CAVW #300260)|
|(4) Current aviation colour code:||ORANGE|
|(5) Previous aviation colour code:||orange|
|(7) Notice Number:||2021-12|
|(8) Volcano Location:||N 56 deg 3 min E 160 deg 38 min|
|(9) Area:||Kamchatka, Russia|
|(10) Summit Elevation:||4750 m (15580 ft)|
|(11) Volcanic Activity Summary:||A moderate explosive-effusive eruption of the volcano continues. According to satellite data, a gas-steam plume containing some amount of ash is extending for 65 km to the northeast of the volcano.|
A moderate explosive-effusive eruption of the volcano continues. Ash explosions up to 7-8 km (23,000-26,200 ft) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft.
|(12) Volcanic cloud height:||6000-6500 m (19680-21320 ft) AMSL Time and method of ash plume/cloud height determination: 20210117/0130Z – Himawari-8|
|(13) Other volcanic cloud information:||Distance of ash plume/cloud of the volcano: 65 km (40 mi)|
Direction of drift of ash plume/cloud of the volcano: NE / azimuth 56 deg
Time and method of ash plume/cloud determination: 20210117/0130Z – Himawari-8
|(15) Contacts:||Dr. Olga A. Girina, Head of KVERT, IVS FEB RAS|
Duty scientist: +79622825253
|(16) Next Notice:||A new VONA will be issued if conditions change significantly or the colour code is changed. VONAs are posted at http://www.kscnet.ru/ivs/kvert/.|
In Russia, KVERT, on behalf of the Institute of Volcanology and Seismology (IVS) FEB RAS, is responsible for providing information on volcanic activity to international air navigation services for the airspace users.
For formal scientific citation of this VONA/KVERT Information Release, please use the following:
VONA/KVERT Information Release, January 17, 2021. KVERT, Institute of Volcanology and Seismology FEB RAS. URL: http://www.kscnet.ru/ivs/kvert/van/?n=2021-12.