KVERT WEEKLY INFORMATION RELEASE 05-2021 Kamchatkan and Kuriles Volcanic Activity January 28, 2021, 23:51 UTC (January 29, 2021, 11:51 KST) KVERT monitor active volcanoes of Kamchatka and the Kurile Islands. 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, KLYUCHEVSKOY, SHEVELUCH: ORANGE BEZYMIANNY: YELLOW AVACHINSKY, DIKY GREBEN, GAMCHEN, GORELY, ICHINSKY, ILIINSKY, KAMBALNY, KHANGAR, KHODUTKA, KIKHPINYCH, KIZIMEN, KOMAROV, KORYAKSKY, KOSHELEV, KRASHENINNIKOV, KRONOTSKY, KSUDACH, MALY SEMYACHIK, MUTNOVSKY, OPALA, PLOSKY TOLBACHIK, TAUNSHITS, USHKOVSKY, VYSOKY, ZHELTOVSKY, ZHUPANOVSKY: GREEN NORTHERN KURILES EBEKO: ORANGE ALAID, ANTSIFEROV, CHIKURACHKI, CHIRINKOTAN, EKARMA, FUSS PEAK, KARPINSKY, KRENITSYN PEAK, KUNTOMINTAR, NEMO PEAK, SEVERGIN, SINARKA, TATARINOV: GREEN CENTRAL KURILES SARYCHEV PEAK: YELLOW GORYASHCHY, PALLAS PEAK, PREVO PEAK, RAIKOKE, RASSHUA, USHISHIR, ZAVARITSKY CALDERA: GREEN SOUTHERN KURILES ATSONUPURI, BARANSKY, BERG, BERUTARUBE, BOGDAN KHMELNITSKY, BRAT CHIRPOEV, CHYORNOGO, GOLOVNIN, IVAN GROZNY, KOLOKOL, KUDRYAVY, MENDELEEV, SNOW, STOKAP, TREZUBETS, TYATYA: GREEN SHEVELUCH VOLCANO (CAVW #300270) 56.64 N, 161.32 E; Elevation 3283 m (10768 ft), the dome elevation ~2500 m (8200 ft) Aviation Colour Code is ORANGE The extrusive eruption of the volcano continues. Ash explosions up to 10-15 km (32,800-49,200 ft) 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 strong fumarolic activity, and an incandescence of the lava dome and hot avalanches accompanie this process. Satellite data showed a thermal anomaly over the lava dome all week. http://www.kscnet.ru/ivs/kvert/volc?lang=en&name=Sheveluch KLYUCHEVSKOY VOLCANO (CAVW #300260) 56.06 N, 160.64 E; Elevation 4750 m (15580 ft) Aviation Colour Code is ORANGE A moderate explosive-effusive eruption of the volcano continues. Ash explosions up to 9-10 km (29,500-32,800 ft) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft. A moderate explosive-effusive eruption of the volcano continues, the Strombolian, gas-steam and sometimes Vulcanian activity is observing. The lava flows continue to move along Kozyrevsky and Apakhonchichsky chutes on the southern and southeastern volcanic flanks. Satellite data showed a large bright thermal anomaly in the area of the volcano all week. According to satellite and visual data, on 24 January, a paroxysmal event occurred: as a result of the collapse of pyroclastics from the sides of the Apakhonchich chute, an ash cloud formed over the slope of the volcano, which rose up to 9.6 km a.s.l. The ash cloud drifted for 60 km, first to the north, then to the northeast of the volcano. In the other days of the week gas-steam plumes containing some amount of ash rose up to 6 km a.s.l., and extended for 125 km to the different directions of the volcano. http://www.kscnet.ru/ivs/kvert/volc?lang=en&name=Klyuchevskoy KARYMSKY VOLCANO (CAVW #300130) 54.05 N, 159.44 E; Elevation 1486 m (4874 ft) Aviation Colour Code is ORANGE A moderate activity of the volcano continues. The ash explosions up to 5-7 km (16,400-23,000 ft) a.s.l. could occur at any time. Ongoing activity could affect low-flying aircraft. A moderate activity of the volcano continues. Satellite data showed a thermal anomaly over the lava dome on 21-24, and 27 January; the volcano was obscured by clouds in the 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 1156 m (3792 ft) Aviation Colour Code is ORANGE A moderate eruptive activity of the volcano continues. Ash explosions up to 6 km (19,700 ft) a.s.l. could occur at any time. Ongoing activity could affect low-flying aircraft and airport of Severo-Kurilsk. A moderate explosive eruption of the volcano continues. According to visual data by volcanologists from Severo-Kurilsk, explosions sent ash up to 3.1 km a.s.l. on 22, 24-25, and 27 January; ash clouds drifted to the east-southeast of the volcano; an ashfall was noted in Severo-Kurilsk on 24 January. Satellite data showed the volcano was obscured by clouds. http://www.kscnet.ru/ivs/kvert/volc?lang=en&name=Ebeko BEZYMIANNY VOLCANO (CAVW #300250) 55.97 N, 160.6 E; Elevation 2882 m (9453 ft) 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 showed a thermal anomaly over the lava dome on 21-24, and 27 January; the volcano was obscured by clouds in the other days of the week. http://www.kscnet.ru/ivs/kvert/volc?lang=en&name=Bezymianny SARYCHEV PEAK VOLCANO (CAVW #290240) 48.09 N, 153.2 E; Elevation 1496 m (4907 ft) Aviation Colour Code is YELLOW A moderate effusive eruption of the volcano continues. Ash explosions up to 10-15 km (32,800-49,200 ft) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft. The effusive eruption of the volcano, which began on 10 January, continues. The lava flow effuse onto the northern slope of the volcano. According to satellite data from KVERT, a thermal anomaly was observed in the volcano area all week. http://www.kscnet.ru/ivs/kvert/volc?lang=en&name=Sarychev Peak 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) FEB RAS, is responsible for providing information on volcanic activity to international air navigation services for the airspace users. KVERT scientists are 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) of Kamchatkan and Kuriles Volcanoes to using the information system (IS) “Remote monitoring of the activity of Kamchatka and Kuriles volcanoes (VolSatView)”, which was created in 2011-2014 the joint efforts of the scientists of KVERT IVS FEB RAS, the Space Research Institute RAS, the Computing Center FEB RAS and the Far Eastern Scientific Center Planet. IS continues to evolve. KVERT 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 Kuriles Volcanoes. KVERT web-page (the Institute of Volcanology and Seismology FEB RAS): http://www.kscnet.ru/ivs/kvert/ 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/