(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20231018/0416Z (3) Volcano:Bezymianny (CAVW #300250) (4) Current aviation colour code:ORANGE (5) Previous aviation colour code:orange (6) Source:KVERT (7) Notice Number:2023-116 (8) Volcano Location:N 55 deg 58 min E 160 deg 35 min (9) Area:Kamchatka, Russia (10) Summit Elevation:2882 m (9452.96 ft)(11) Volcanic Activity Summary:An extrusive eruption of the volcano continues. Large hot avalanches continue to collapsed on the eastern slopes of the lava dome, the ash from which rise up to 4.5-5 km a.s.l., and an ash plume is moving to the northwest of the volcano.\n\nAn extrusive eruption of the volcano continues. Ash explosions up to 10-15 km (32,800-49,200 ft) a.s.l. could occur during next 1-3 days. Ongoing activity could affect international and low-flying aircraft. (12) Volcanic cloud height:4500-5000 m (14760-16400 ft) AMSL Time and method of ash plume/cloud height determination: 20231018/0207Z – Suomi NPP 15m16(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 32 km (20 mi)\nDirection of drift of ash plume/cloud of the volcano: NW / azimuth 323 deg \nTime and method of ash plume/cloud determination: 20231018/0207Z – Suomi NPP 15m16(14) Remarks:(15) Contacts:Dr. Olga A. Girina, Head of KVERT, IVS FEB RAS\ngirina@kscnet.ru +74152202044\n\nDuty 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/.\n\nIn 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.