|(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)|
|(3) Volcano:||Ebeko (CAVW #290380)|
|(4) Current aviation colour code:||ORANGE|
|(5) Previous aviation colour code:||orange|
|(7) Notice Number:||2023-90|
|(8) Volcano Location:||N 50 deg 41 min E 156 deg 0 min|
|(9) Area:||Northern Kuriles, Russia|
|(10) Summit Elevation:||1156 m (3791.68 ft)|
|(11) Volcanic Activity Summary:||A moderate explosive activity of the volcano continues. According to visual data from Severo-Kurilsk, explosions sent ash up to 3 km a.s.l., an ash cloud is drifting to the south-east of the volcano.|
A moderate eruptive activity of the volcano continues. Ash explosions up to 6 km (19,700 ft) a.s.l. could occur at any time. Ongoing activity could affect low-flying aircraft and airport of Severo-Kurilsk.
|(12) Volcanic cloud height:||3000 m (9840 ft) AMSL Time and method of ash plume/cloud height determination: 20230821/2154Z – Visual data|
|(13) Other volcanic cloud information:||Distance of ash plume/cloud of the volcano: 15 km (9 mi)|
Direction of drift of ash plume/cloud of the volcano: SE
Time and method of ash plume/cloud determination: 20230821/2154Z – Visual data
|(15) Contacts:|| Anton A. Nuzhdaev, 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, August 21, 2023. KVERT, Institute of Volcanology and Seismology FEB RAS. URL: http://www.kscnet.ru/ivs/kvert/van/?n=2023-90.
|Aviation Color Codes|
Volcano is in normal, non-eruptive state
or, after a change from a higher level:
Volcanic activity considered to have ceased, and volcano reverted to its normal, non-eruptive state.
Volcano is experiencing signs of elevated unrest above known background levels.
or, after a change from higher level:
Volcanic activity has decreased significantly but continues to be closely monitored for possible renewed increase.
Volcano is exhibiting heightened unrest with increased likelihood of eruption.
Volcanic eruption is underway with no or minor ash emission.
Eruption is forecast to be imminent with significant emission of ash into the atmosphere likely.
Eruption is underway with significant emission of ash into the atmosphere.