(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20170902/0107Z (3) Volcano:Ebeko (CAVW #290380) (4) Current Aviation Color Code:ORANGE (5) Previous Aviation Color Code:orange (6) Source:KVERT (7) Notice Number:2017-223 (8) Volcano Location:N 50 deg 41 min E 156 deg 0 min (9) Area:Northern Kuriles, Russia (10) Summit Elevation:3791.68 ft (1156 m)(11) Volcanic Activity Summary:A moderate explosive activity of Ebeko volcano continues. According to the data by observers from Severo-Kurilsk (Paramushir Island, Northern Kuriles), an ash plume rose up to 3.3 km a.s.l. and extended about 7 km to the east from the volcano on September 2, 00:42 UTC.\n\nA moderate gas-steam with some amount of ash activity of the volcano continues. Ash explosions up to 16,400 ft (5 km) a.s.l. could occur at any time. Ongoing activity could affect low-flying aircraft and airport of Severo-Kurilsk. (12) Volcanic cloud height:10824 ft (3300 m) AMSL Time and method of ash plume/cloud height determination: 20170902/0042Z – Visual data(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 4 mi (7 km)\nDirection of drift of ash plume/cloud of the volcano: E / azimuth 85 deg \nTime and method of ash plume/cloud determination: 20170902/0042Z – Visual data\nDuration of explosion: ~ 30 minutes(14) Remarks:(15) Contacts: Dmitry V. Melnikov, IVS FEB RAS\ndvm@kscnet.ru \n\nDuty scientist: +79622825253 (16) Next Notice:A new VONA will be issued if conditions change significantly or the Aviation Color Code is changes. VONAs are posted at http://www.kscnet.ru/ivs/kvert/index_eng.php.\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.