(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
 (2) Issued:20181101/2346Z
 (3) Volcano:Sarychev PeakĀ (CAVW #290240)
 (4) Current aviation colour code:YELLOW
 (5) Previous aviation colour code:orange
 (6) Source:KVERT
 (7) Notice Number:2018-108
 (8) Volcano Location:N 48 deg 5 min E 153 deg 12 min
 (9) Area:Central Kuriles, Russia
(10) Summit Elevation:4906.88 ft (1496 m)
(11) Volcanic Activity Summary:A moderate gas-steam activity of the volcano continues. According to satellite data, a thermal anomaly over the volcano was noted last time on 15 October, 2018, and ash explosions - on 10 October, 2018. The volcano was quiet or obscured by clouds on 16-31 October. KVERT continues to monitor Sarychev Peak volcano.

A moderate gas-steam activity of the volcano continues. The danger of ash explosions up to 32,800-49,200 ft (10-15 km) a.s.l. is remain. Ongoing activity could affect international and low-flying aircrafts.
(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/index_eng.php.

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.