(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20181101/2346Z (3) Volcano:Sarychev Peak (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.\n\nA 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\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/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.