KVERT WEEKLY INFORMATION RELEASE 39-2018 Kamchatkan and Kuriles Volcanic Activity September 27, 2018, 23:34 UTC (September 28, 2018, 11:34 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 COLOUR CODES: KAMCHATKA KARYMSKY, SHEVELUCH: ORANGE BEZYMIANNY: YELLOW AVACHINSKY, DIKY GREBEN, GAMCHEN, GORELY, ICHINSKY, ILIINSKY, KAMBALNY, 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: ORANGE 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 Colour Code is ORANGE A moderate gas-steam activity of the volcano continues. Ash explosions up to 32,800-49,200 ft (10-15 km) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircrafts. Satellite data by KVERT showed a thermal anomaly over the volcano on September 20, 23, and 27; the volcano was obscured by clouds during other days of the week. http://www.kscnet.ru/ivs/kvert/volc?lang=en&name=Sheveluch KARYMSKY VOLCANO (CAVW #300130) 54.05 N, 159.44 E; Elevation 4874 ft (1486 m) Aviation Colour Code is ORANGE A moderate eruptive activity of the volcano continues. Ash explosions up to 13,100-19,700 ft (4-6 km) a.s.l. could occur at any time. Ongoing activity could affect low-flying aircrafts. A moderate eruptive activity of the volcano continues. Satellite data by KVERT showed ash plumes extended up to 365 km to the east from the volcano on September 22-23; and a thermal anomaly over the volcano on September 22-24; the volcano was obscured by clouds during other days of the week. http://www.kscnet.ru/ivs/kvert/volc?lang=en&name=Karymsky EBEKO VOLCANO (CAVW #290380) 50.69 N, 156.01 E; Elevation 3792 ft (1156 m) Aviation Colour Code is ORANGE A moderate eruptive activity of the volcano continues. Ash explosions up to 19,700 ft (6 km) a.s.l. could occur at any time. Ongoing activity could affect low-flying aircraft and airport of Severo-Kurilsk. A moderate explosive activity of the volcano continues. According to visual data by volcanologists from Severo-Kurilsk, explosions sent ash up to 4 km a.s.l. all week. Satellite data by KVERT showed ash clouds drifted up to 68 km to the south-east from the volcano on September 23-24, and 26-27; and a thermal anomaly over the volcano on September 23, and 27. http://www.kscnet.ru/ivs/kvert/volc?lang=en&name=Ebeko SARYCHEV PEAK VOLCANO (CAVW #290240) 48.09 N, 153.2 E; Elevation 4907 ft (1496 m) Aviation Colour Code is ORANGE An eruptive activity of the volcano continues. Ash explosions up to 32,800-49,200 ft (10-15 km) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircrafts. An eruptive activity of the volcano continues. Satellite data by KVERT showed a thermal anomaly over the volcano on September 22; the volcano was quiet or obscured by clouds during other days of the week. http://www.kscnet.ru/ivs/kvert/volc?lang=en&name=Sarychev Peak BEZYMIANNY VOLCANO (CAVW #300250) 55.97 N, 160.6 E; Elevation 9453 ft (2882 m) Aviation Colour Code is YELLOW A moderate gas-steam activity of the volcano continues. Ongoing activity could affect low-flying aircraft. A moderate gas-steam activity of the volcano continues. Satellite data by KVERT showed a thermal anomaly over the volcano on September 20, 23, and 26-27; the volcano was obscured by clouds during other days of the week. http://www.kscnet.ru/ivs/kvert/volc?lang=en&name=Bezymianny IF YOU HAVE ANY QUESTIONS OR CONCERNS, PLEASE CONTACT: Alexander G. Manevich, IVS FEB RAS E-mail: mag@kscnet.ru Tel.: +74152202115 Tel. Duty scientist: +79622825253 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. 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 FEB 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/