(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
(2) Issued:	20220315/2345Z
(3) Volcano:	Bezymianny (CAVW #300250)
(4) Current aviation colour code:	ORANGE
(5) Previous aviation colour code:	orange
(6) Source:	KVERT
(7) Notice Number:	2022-20
(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:	The explosive eruption of the volcano Bezymianny ended. A moderate gas-steam emission of the volcano is observing at now. A lava flow is squeezed onto the lava dome slopes, sometimes this process is accompanied by ash avalanches. A rarefied ash plume from ash avalanches rises up to 2.5 km a.s.l., and continues to move west of the volcano. Paroxysmal phase of the eruption with the removal of ash up to 12 km a.s.l. started at 00:53 UTC on March 15. There was a formation of short pyroclastic flows that collapsed into the Vostochnaya and Yuzhnaya Valleys. The eruptive cloud moved north and northeast of the volcano. At present, the eruptive cloud in size about 160x320 km at an altitude of 6 km a.s.l. continues to move for 620 km northeast of the volcano. A moderate gas-steam emission with possible some amount of ash of the volcano continues. Ongoing activity could affect low-flying aircraft.
(12) Volcanic cloud height:	NO ASH CLOUD PRODUSED
(13) Other volcanic cloud information:	NO ASH CLOUD PRODUSED
(14) Remarks:
(15) Contacts:	Dr. Olga A. Girina, Head of KVERT, IVS FEB RAS girina@kscnet.ru +74152202044 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.