(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
 (2) Issued:20220131/2114Z
 (3) Volcano:Chikurachki (CAVW #290360)
 (4) Current aviation colour code:ORANGE
 (5) Previous aviation colour code:orange
 (6) Source:KVERT
 (7) Notice Number:2022-11
 (8) Volcano Location:N 50 deg 19 min E 155 deg 27 min
 (9) Area:Northern Kuriles, Russia
(10) Summit Elevation:1816 m (5956.48 ft)
(11) Volcanic Activity Summary:A moderate eruptive activity of the volcano continues. Satellite data by KVERT showed an ash cloud extended about 104 km to the west-south-west from the volcano.

A strong gas-steam 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.
(12) Volcanic cloud height:2800-3000 m (9184-9840 ft) AMSL Time and method of ash plume/cloud height determination: 20220131/1619Z – Suomi NPP (14m15)
(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 104 km (65 mi)
Direction of drift of ash plume/cloud of the volcano: WSW / azimuth 254 deg
Time and method of ash plume/cloud determination: 20220131/1619Z – Suomi NPP (14m15)
(14) Remarks:
(15) Contacts: Alexander G. Manevich, IVS FEB RAS
mag@kscnet.ru +74152202115

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.