(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20230414/0213Z (3) Volcano:Ebeko (CAVW #290380) (4) Current aviation colour code:ORANGE (5) Previous aviation colour code:orange (6) Source:KVERT (7) Notice Number:2023-59 (8) Volcano Location:N 50 deg 41 min E 156 deg 0 min (9) Area:Northern Kuriles, Russia (10) Summit Elevation:1156 m (3791.68 ft)(11) Volcanic Activity Summary:A moderate explosive activity of the volcano continues. According to satellite data by KVERT, an explosion sent ash up to 3.5 km a.s.l., an ash cloud 25x7 km in size is drifting to the northnortheast of the volcano.\n\nA moderate explosive eruption 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 and airport of Severo-Kurilsk. (12) Volcanic cloud height:3500 m (11480 ft) AMSL Time and method of ash plume/cloud height determination: 20230414/0040Z – Himawari-9 14m15(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 72 km (45 mi)\nDirection of drift of ash plume/cloud of the volcano: NNE / azimuth 24 deg \nTime and method of ash plume/cloud determination: 20230414/0140Z – Himawari-9 14m15(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.