(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
(2) Issued:	20230803/0156Z
(3) Volcano:	Ebeko (CAVW #290380)
(4) Current aviation colour code:	ORANGE
(5) Previous aviation colour code:	orange
(6) Source:	KVERT
(7) Notice Number:	2023-89
(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 visual data from Severo-Kurilsk, explosions sent ash up to 3.5 km a.s.l., an ash cloud is drifting to the south-east of the volcano. A moderate 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 and airport of Severo-Kurilsk.
(12) Volcanic cloud height:	3000-3500 m (9840-11480 ft) AMSL Time and method of ash plume/cloud height determination: 20230803/0148Z – Visual data
(13) Other volcanic cloud information:	Distance of ash plume/cloud of the volcano: 10 km (6 mi) Direction of drift of ash plume/cloud of the volcano: SE Time and method of ash plume/cloud determination: 20230803/0148Z – Visual data Start time of explosion and how determined: 20230803/0148Z – Visual data
(14) Remarks:
(15) Contacts:	Alexander G. Manevich, IVS FEB RAS mag@kscnet.ru +74152202115 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.