(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20220918/0125Z (3) Volcano:Alaid (CAVW #290390) (4) Current aviation colour code:ORANGE (5) Previous aviation colour code:yellow (6) Source:KVERT (7) Notice Number:2022-116 (8) Volcano Location:N 50 deg 51 min E 155 deg 33 min (9) Area:Northern Kuriles, Russia (10) Summit Elevation:2339 m (7671.92 ft)(11) Volcanic Activity Summary:Probably the Strombolian explosive eruption of Alaid volcano began on 00:39 UTC on 15 September. A gas-steam plume containing some amount of ash is observing at present time: this plume extending to the east-southeast of the volcano. KVERT continues to monitor Alaid volcano.\n\nModerate 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. (12) Volcanic cloud height:2500-2600 m (8200-8528 ft) AMSL Time and method of ash plume/cloud height determination: 20220918/0008Z – NOAA-18 4m5(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: ESE / azimuth 109 deg \nTime and method of ash plume/cloud determination: 20220918/0008Z – NOAA-18 4m5(14) Remarks:Alaid - the volcano-Island, is situated at a distance 30 km north-west from Paramushir Island, and 70 km southwest from Kamchatka. Alaid exposes high potential hazard to the aircrafts flying over Kamchatka and the Kuriles because its eruptive plumes can rise up to 10-15 km a.s.l., and extend for hundreds of kilometers, and the duration of eruptions can exeed a few months. Last eruption of Alaid was in 2015-2016.(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.