KVERT WEEKLY INFORMATION RELEASE 21-2020 Kamchatkan and Kuriles Volcanic Activity May 21, 2020, 23:17 UTC (May 22, 2020, 11:17 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 KLYUCHEVSKOY, SHEVELUCH: ORANGE BEZYMIANNY, KARYMSKY: 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, ANTSIFEROVA, CHIKURACHKI, CHIRINKOTAN, EKARMA, FUSS PEAK, KARPINSKY, KRENITSYN PEAK, KUNTOMINTAR, NEMO PEAK, SEVERGIN, SINARKA, TATARINOV: GREEN CENTRAL KURILES GORYASHCHY, PALLAS PEAK, PREVO PEAK, RAIKOKE, RASSHUA, SARYCHEV PEAK, 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 10768 ft (3283 m), the dome elevation ~8200 ft (2500 m) Aviation Colour Code is ORANGE The explosive-extrusive eruption 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 aircraft. A growth of the lava dome continues, a strong fumarolic activity sometimes with some amount of ash, and an incandescence of the dome blocks and hot avalanches accompanie this process. Satellite data showed a thermal anomaly over the volcano all week. http://www.kscnet.ru/ivs/kvert/volc?lang=en&name=Sheveluch KLYUCHEVSKOY VOLCANO (CAVW #300260) 56.06 N, 160.64 E; Elevation 15580 ft (4750 m) Aviation Colour Code is ORANGE A moderate explosive-effusive eruption of the volcano continues. Ash explosions up to 16,400-23,000 ft (5-7 km) a.s.l. could occur at any time. Ongoing activity could affect low-flying aircraft. A moderate explosive-effusive eruption of the volcano continues, the Strombolian and gas-steam activity with some amount of ash was observing all week. The lava flow continues to move along Apakhonchich chute on the southeastern volcanic flank. Satellite data showed a large bright thermal anomaly in an area of the volcano all week; on 15-17 and 21 May, gas-steam plumes containing some amount of ash extended for 100 km to the northwest, southeast and east of the volcano. http://www.kscnet.ru/ivs/kvert/volc?lang=en&name=Klyuchevskoy EBEKO VOLCANO (CAVW #290380) 50.69 N, 156.01 E; Elevation 3792 ft (1156 m) Aviation Colour Code is ORANGE A moderate 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 eruption of the volcano continues. According to visual data by volcanologists from Severo-Kurilsk, explosions sent ash up to 3.6 km a.s.l. on 14-15 and 19-21 May; ash clouds drifted to the southern directions of the volcano. Satellite data showed a thermal anomaly over the volcano on 14-15 and 19-21 May; ash clouds drifted for 80 km to the southwest and southeast of the volcano on 14 and 20-21 May. http://www.kscnet.ru/ivs/kvert/volc?lang=en&name=Ebeko 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 showed a thermal anomaly over the lava dome all week. http://www.kscnet.ru/ivs/kvert/volc?lang=en&name=Bezymianny KARYMSKY VOLCANO (CAVW #300130) 54.05 N, 159.44 E; Elevation 4874 ft (1486 m) Aviation Colour Code is YELLOW A moderate gas-steam activity of the volcano continues. Ash explosions up to 10,000- 13,100 ft (3-4 km) a.s.l. could occur at any time. Ongoing activity could affect low-flying aircrafts. A moderate gas-steam activity of the volcano continues. Satellite data showed the volcano was quiet or obscured by clouds aa week. http://www.kscnet.ru/ivs/kvert/volc?lang=en&name=Karymsky 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/