VONA/KVERT WEEKLY INFORMATION RELEASE 51-2016 Kamchatkan and Northern Kuriles Volcanic Activity December 22, 2016, 23:16 UTC (December 23, 2016, 11:16 KST) KVERT monitor 30 active volcanoes of Kamchatka and 6 active volcanoes of Northern Kuriles. Not all of these volcanoes had eruptions in historical time, however they are potentially active and therefore are of concern to aviation. SUMMARY OF AVIATION COLOR CODES: KAMCHATKA BEZYMIANNY, SHEVELUCH: ORANGE AVACHINSKY, DIKY GREBEN, GAMCHEN, GORELY, ICHINSKY, ILIINSKY, KAMBALNY, KARYMSKY, KHANGAR, KHODUTKA, KIKHPINYCH, KIZIMEN, KLYUCHEVSKOY, KOMAROV, KORYAKSKY, KOSHELEV, KRASHENINNIKOV, KRONOTSKY, KSUDACH, MALY SEMYACHIK, MUTNOVSKY, OPALA, PLOSKY TOLBACHIK, TAUNSHITS, USHKOVSKY, VYSOKY, ZHELTOVSKY, ZHUPANOVSKY: GREEN NORTHERN KURILES EBEKO: YELLOW ALAID, CHIKURACHKI, FUSS PEAK, KARPINSKY, TATARINOV: GREEN SHEVELUCH VOLCANO (CAVW #300270) 56.64 N, 161.32 E; Elevation 10768 ft (3283 m), the dome elevation ~8200 ft (2500 m) Aviation Color Code is ORANGE Explosive-extrusive eruption of the volcano continues. Ash explosions up to 26,200-32,800 ft (8-10 km) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft. A growth of the lava dome continues (a viscous lava flow reveal in the northern its part), strong fumarole activity, ash explosions, hot avalanches and an incandescence of the dome blocks and hot avalanches accompany this process. According to video data, explosions sent ash up to 7 km a.s.l. on 19 December. Satellite data by KVERT showed ash plumes extended for about 370 km to the north-northwest from the volcano on 16-20 December. A thermal anomaly over the lava dome was noting all week. http://www.kscnet.ru/ivs/kvert/volc.php?lang=en&name=Sheveluch BEZYMIANNY VOLCANO (CAVW #300250) 55.97 N, 160.6 E; Elevation 9453 ft (2882 m) Aviation Color Code is ORANGE Extrusive eruption of the volcano probably continues. Strong ash explosions up to 49,200 ft (15 km) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft. Strong gas-steam activity of the volcano was noting all week. Gas-steam plume drifted for about 60 km to the southwest of the volcano on 18 December. Satellite data by KVERT showed a thermal anomaly over the volcano all week. http://www.kscnet.ru/ivs/kvert/volc.php?lang=en&name=Bezymianny EBEKO VOLCANO (CAVW #290380) 50.69 N, 156.01 E; Elevation 3792 ft (1156 m) Aviation Color Code is YELLOW A moderate gas-steam with small amount of ash activity of the volcano continues. Ash explosions up to 16,400 ft (5 km) a.s.l. could occur at any time. Ongoing activity could affect low-flying aircraft and airport of Severo-Kurilsk. A moderate activity of the volcano continues. According to the data by observers from Severo-Kurilsk (Paramushir Island, Northern Kuriles), gas-steam plumes containing small anount of ash rose up to 1.5 km a.s.l. and extended for about 8 km to the north and northeast from the volcano on 17 and 20 December. Weak ashfalls were noted at Severo-Kurilsk on 18-22 December. Satellite data by KVERT showed the volcano was obscured by clouds all week. http://www.kscnet.ru/ivs/kvert/volc.php?lang=en&name=Ebeko IF YOU HAVE ANY QUESTIONS OR CONCERNS, PLEASE CONTACT: Dr. Olga A. Girina, Head of KVERT, IVS FEB RAS E-mail: girina@kscnet.ru Tel.: +74152202044 Tel. Duty scientist: +79622825253 In Russia, KVERT, on behalf of the Institute of Volcanology and Seismology (IVS) FED RAS, is responsible for providing information on volcanic activity to international air navigation services for the airspace users. KVERT scientists was available in the office from 8:30 AM till 6:00 PM (KST) 7 days in week and by phone during the evenings since 2005. KVERT produces daily satellite monitoring (since 2002 till now); analyses information from remote scientific observation stations and seismic data for volcanoes: Alaid, Avachinsky, Bezymianny, Gorely, Karymsky, Kizimen, Klyuchevskoy, Koryaksky, Mutnovsky, Plosky Tolbachik, Sheveluch, Ushkovsky, Zhupanovsky (from the Kamchatkan Branch of Geophysical Survey RAS); and other information to monitor activity at Kamchatkan and Northern Kuriles Volcanoes. KVERT web-page (the Institute of Volcanology and Seismology FED RAS): http://www.kscnet.ru/ivs/kvert/index_eng.php KVERT Information Releases at the web-page of AVO (Alaska Volcano Observatory): http://www.avo.alaska.edu Web-cameras for Kamchatkan volcanoes: http://www.kscnet.ru/ivs/kvert/