(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
(2) Issued:	20220131/0540Z
(3) Volcano:	Chikurachki (CAVW #290360)
(4) Current aviation colour code:	ORANGE
(5) Previous aviation colour code:	green
(6) Source:	KVERT
(7) Notice Number:	2022-10
(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 strong gas-steam activity of the volcano continues from 01:00 UTC on 31 January. Probably a gas-steam plume containing some amount of ash; such plume extended for 75 km to the southwest of the volcano at 02:00 UTC on 31 January. Activity of the volcano continues. 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:	4500-5000 m (14760-16400 ft) AMSL Time and method of ash plume/cloud height determination: 20220131/0318Z – JPSS-1 (14m15)
(13) Other volcanic cloud information:	Distance of ash plume/cloud of the volcano: 80 km (50 mi) Direction of drift of ash plume/cloud of the volcano: SSW / azimuth 209 deg Time and method of ash plume/cloud determination: 20220131/0318Z – JPSS-1 (14m15)
(14) Remarks:
(15) Contacts:	Dr. Olga A. Girina, Head of KVERT, IVS FEB RAS girina@kscnet.ru +74152202044 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.