November 2023 - Avo_kvert - list.avo.alaska.edu

VONA/KVERT (Klyuchevskoy 2023-152)
by KVERT 04 Nov '23

04 Nov '23

 (1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20231105/0232Z (3) Volcano:Klyuchevskoy (CAVW #300260) (4) Current aviation colour code:ORANGE (5) Previous aviation colour code:orange (6) Source:KVERT (7) Notice Number:2023-152 (8) Volcano Location:N 56 deg 3 min E 160 deg 38 min (9) Area:Kamchatka, Russia (10) Summit Elevation:4750 m (15580 ft)(11) Volcanic Activity Summary:The eruption of the Klyuchevskoy volcano has ended, but a large hot lava flow lying in the Apakhonchichsky chute, continues to provoke the collapses of old pyroclastic material from the sides of the chute. From time to time on 04 November, ash plumes appeared that rose to 5.5 km a.s.l., and were extending for 170 km to the northeast of the volcano.\n\nThe activity of the volcano continues. A danger of ash rising up to 7 km (23,000 ft) a.s.l. remains. Ongoing activity could affect low-flying aircraft. (12) Volcanic cloud height:5000-5500 m (16400-18040 ft) AMSL Time and method of ash plume/cloud height determination: 20231105/0150Z – Himawari-9 14m15(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 22 km (14 mi)\nDirection of drift of ash plume/cloud of the volcano: ENE / azimuth 61 deg \nTime and method of ash plume/cloud determination: 20231105/0150Z – Himawari-9 14m15(14) Remarks:(15) Contacts:Dr. Olga A. Girina, Head of KVERT, IVS FEB RAS\ngirina(a)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/.\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.

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KVERT DAILY RELEASE, November 03, 2023
by KVERT 03 Nov '23

03 Nov '23

KVERT DAILY REPORT Kamchatkan and Kuriles Volcanic Activity November 03, 2023, all time is UTC 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 An extrusive-effusive eruption of the volcano continues: a lava is extruding into the explosive crater of the Young Sheveluch, it is accompanied by powerful gas-steam activity, and sometimes an incandescence of the lava dome. In the area of the Karan dome, powerful gas-steam activity is also observed. Satellite data by KVERT showed a thermal anomaly over the volcano. KLYUCHEVSKOY VOLCANO (CAVW #300260) 56.06 N, 160.64 E; Elevation 4750 m (15580 ft) Aviation Colour Code is ORANGE An explosive-effusive eruption of the volcano continues. Against the background of explosive activity of the volcano, probably, a lava flow continues to move along the Apakhonchichsky chute, because phreatic explosions occurred in this chute, and old pyroclastic material collapsed from chutes sides, and an ash cloud raise up to 8 km a.s.l. Satellite data by KVERT showed a thermal anomaly over the volcano, and an edge of ash cloud of the paroxysmal phase of the eruption extended more than 3200 km to the east of the volcano. EBEKO VOLCANO (CAVW #290380) 50.69 N, 156.01 E; Elevation 1156 m (3792 ft) Aviation Colour Code is ORANGE A moderate activity of the volcano continues. Satellite data by KVERT showed the volcano was quiet. BEZYMIANNY VOLCANO (CAVW #300250) 55.97 N, 160.6 E; Elevation 2882 m (9453 ft) Aviation Colour Code is YELLOW An effusive eruption of the volcano continues; a strong fumarolic activity, hot avalanches and an incandescence of the lava dome is accompanied this process. Satellite data by KVERT showed a thermal anomaly over the volcano. CONTACT INFORMATION: Duty scientist: Alexander G. Manevich, E-mail: mag(a)kscnet.ru Tel. Duty scientist: +79622825253 Head of KVERT Dr. Olga A. Girina, E-mail: girina(a)kscnet.ru Tel.: +74152202044 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. The daily satellite monitoring for volcanoes of Kamchatkan and Kuriles are producing of KVERT. KVERT web-page (the Institute of Volcanology and Seismology FEB RAS): http://www.kscnet.ru/ivs/kvert/.

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VONA/KVERT (Klyuchevskoy 2023-151)
by KVERT 03 Nov '23

03 Nov '23

 (1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20231104/0452Z (3) Volcano:Klyuchevskoy (CAVW #300260) (4) Current aviation colour code:ORANGE (5) Previous aviation colour code:orange (6) Source:KVERT (7) Notice Number:2023-151 (8) Volcano Location:N 56 deg 3 min E 160 deg 38 min (9) Area:Kamchatka, Russia (10) Summit Elevation:4750 m (15580 ft)(11) Volcanic Activity Summary:The eruptive activity of Klyuchevskoy volcano continues, an ash plume is extending for 114 km to the east-northeast of the volcano.\n\nThe summit explosive-effusive eruption of the volcano continues. A danger of ash explosions up to 7-8 km (23,000-26,200 ft) a.s.l. remains. Ongoing activity could affect international and low-flying aircraft. (12) Volcanic cloud height:5000-5500 m (16400-18040 ft) AMSL Time and method of ash plume/cloud height determination: 20231104/0420Z – Himawari-9 14m15(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 114 km (71 mi)\nDirection of drift of ash plume/cloud of the volcano: ENE / azimuth 63 deg \nTime and method of ash plume/cloud determination: 20231104/0420Z – Himawari-9 14m15(14) Remarks:(15) Contacts:Dr. Olga A. Girina, Head of KVERT, IVS FEB RAS\ngirina(a)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/.\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.

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KVERT DAILY RELEASE, November 02, 2023
by KVERT 02 Nov '23

02 Nov '23

KVERT DAILY REPORT Kamchatkan and Kuriles Volcanic Activity November 02, 2023, all time is UTC 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 An extrusive-effusive eruption of the volcano continues: a lava is extruding into the explosive crater of the Young Sheveluch, it is accompanied by powerful gas-steam activity, and sometimes an incandescence of the lava dome. In the area of the Karan dome, powerful gas-steam activity is also observed. Satellite data by KVERT showed a thermal anomaly over the volcano. KLYUCHEVSKOY VOLCANO (CAVW #300260) 56.06 N, 160.64 E; Elevation 4750 m (15580 ft) Aviation Colour Code is ORANGE An explosive-effusive eruption of the volcano continues. Against the background of explosive activity of the volcano, probably, a lava flow continues to move along the Apakhonchichsky chute, because phreatic explosions occurred in this chute, and old pyroclastic material collapsed from chutes sides, and an ash cloud raise up to 8.2 km a.s.l. Satellite data by KVERT showed a thermal anomaly over the volcano, and an ash plume which was extending in an arc for 470 km to the northeast of the volcano at the altitude 6-11 km a.s.l. An edge of ash cloud of the paroxysmal phase of the eruption extended more than 3000 km to the east-southeast of the volcano. EBEKO VOLCANO (CAVW #290380) 50.69 N, 156.01 E; Elevation 1156 m (3792 ft) Aviation Colour Code is ORANGE A moderate activity of the volcano continues. Satellite data by KVERT showed the volcano was quiet. BEZYMIANNY VOLCANO (CAVW #300250) 55.97 N, 160.6 E; Elevation 2882 m (9453 ft) Aviation Colour Code is YELLOW An effusive eruption of the volcano continues; a strong fumarolic activity, hot avalanches and an incandescence of the lava dome is accompanied this process. Satellite data by KVERT showed a thermal anomaly over the volcano. CONTACT INFORMATION: Duty scientist: Olga A. Girina, E-mail: girina(a)kscnet.ru Tel. Duty scientist: +79622825253 Head of KVERT Dr. Olga A. Girina, E-mail: girina(a)kscnet.ru Tel.: +74152202044 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. The daily satellite monitoring for volcanoes of Kamchatkan and Kuriles are producing of KVERT. KVERT web-page (the Institute of Volcanology and Seismology FEB RAS): http://www.kscnet.ru/ivs/kvert/.

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VONA/KVERT (Klyuchevskoy 2023-150)
by KVERT 02 Nov '23

02 Nov '23

 (1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20231103/0516Z (3) Volcano:Klyuchevskoy (CAVW #300260) (4) Current aviation colour code:ORANGE (5) Previous aviation colour code:orange (6) Source:KVERT (7) Notice Number:2023-150 (8) Volcano Location:N 56 deg 3 min E 160 deg 38 min (9) Area:Kamchatka, Russia (10) Summit Elevation:4750 m (15580 ft)(11) Volcanic Activity Summary:The eruptive activity of Klyuchevskoy volcano continues, an ash plume is extending for 144 km to the east-northeast of the volcano.\n\nThe summit explosive-effusive eruption of the volcano continues. A danger of ash explosions up to 7-8 km (23,000-26,200 ft) a.s.l. remains. Ongoing activity could affect international and low-flying aircraft. (12) Volcanic cloud height:6000-6500 m (19680-21320 ft) AMSL Time and method of ash plume/cloud height determination: 20231103/0430Z – Himawari-9 14m15(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 144 km (89 mi)\nDirection of drift of ash plume/cloud of the volcano: ENE / azimuth 71 deg \nTime and method of ash plume/cloud determination: 20231103/0430Z – Himawari-9 14m15(14) Remarks:An edge of ash cloud of the paroxysmal phase of the Klyuchevskoy eruption extended more than 3200 km to the east-southeast of the volcano.(15) Contacts:Dr. Olga A. Girina, Head of KVERT, IVS FEB RAS\ngirina(a)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/.\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.

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VONA/KVERT (Klyuchevskoy 2023-149)
by KVERT 02 Nov '23

02 Nov '23

 (1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20231103/0143Z (3) Volcano:Klyuchevskoy (CAVW #300260) (4) Current aviation colour code:ORANGE (5) Previous aviation colour code:orange (6) Source:KVERT (7) Notice Number:2023-149 (8) Volcano Location:N 56 deg 3 min E 160 deg 38 min (9) Area:Kamchatka, Russia (10) Summit Elevation:4750 m (15580 ft)(11) Volcanic Activity Summary:Probably, a phreatic explosions occurre at Apakhonchichsky chute, and old pyroclastic material collapsed from chutes sides. As result of this, an ash cloud rose up to 8.2 km a.s.l., and it is moving to the east-northeast of the volcano.\n\nThe summit explosive-effusive eruption of the volcano continues. A danger of ash explosions up to 7-8 km (23,000-26,200 ft) a.s.l. remains. Ongoing activity could affect international and low-flying aircraft. (12) Volcanic cloud height:8000-8200 m (26240-26896 ft) AMSL Time and method of ash plume/cloud height determination: 20231103/0100Z – Himawari-9 14m15(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 72 km (45 mi)\nDirection of drift of ash plume/cloud of the volcano: ENE / azimuth 75 deg \nTime and method of ash plume/cloud determination: 20231103/0100Z – Himawari-9 14m15(14) Remarks:An edge of ash cloud of the paroxysmal phase of the Klyuchevskoy eruption extended more than 3000 km to the east-southeast of the volcano.(15) Contacts:Dr. Olga A. Girina, Head of KVERT, IVS FEB RAS\ngirina(a)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/.\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.

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VONA/KVERT (Klyuchevskoy 2023-148)
by KVERT 02 Nov '23

02 Nov '23

 (1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20231103/0038Z (3) Volcano:Klyuchevskoy (CAVW #300260) (4) Current aviation colour code:ORANGE (5) Previous aviation colour code:orange (6) Source:KVERT (7) Notice Number:2023-148 (8) Volcano Location:N 56 deg 3 min E 160 deg 38 min (9) Area:Kamchatka, Russia (10) Summit Elevation:4750 m (15580 ft)(11) Volcanic Activity Summary:The eruptive activity of Klyuchevskoy volcano decreased, but an ash plume continues to extend for 125 km to the east-northeast of the volcano.\n\nThe summit explosive-effusive eruption of the volcano continues. A danger of ash explosions up to 7-8 km (23,000-26,200 ft) a.s.l. remains. Ongoing activity could affect international and low-flying aircraft. (12) Volcanic cloud height:5000-5500 m (16400-18040 ft) AMSL Time and method of ash plume/cloud height determination: 20231102/2350Z – Himawari-9 14m15(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 125 km (78 mi)\nDirection of drift of ash plume/cloud of the volcano: ENE / azimuth 65 deg \nTime and method of ash plume/cloud determination: 20231102/2350Z – Himawari-9 14m15(14) Remarks:An edge of ash cloud of the paroxysmal phase of the Klyuchevskoy eruption extended more than 3000 km to the east-southeast of the volcano.(15) Contacts:Dr. Olga A. Girina, Head of KVERT, IVS FEB RAS\ngirina(a)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/.\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.

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KVERT WEEKLY INFORMATION RELEASE, November 02, 2023, 23:40 UTC
by KVERT 02 Nov '23

02 Nov '23

KVERT WEEKLY INFORMATION RELEASE 45-2023 Kamchatkan and Kuriles Volcanic Activity November 02, 2023, 23:40 UTC (November 03, 2023, 11:40 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: YELLOW AVACHINSKY, DIKY GREBEN, GAMCHEN, GORELY, ICHINSKY, ILIINSKY, KAMBALNY, KARYMSKY, 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, KRENITSIN 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 3283 m (10768 ft), the dome elevation ~2500 m (8200 ft) Aviation Colour Code is ORANGE The extrusive-effusive eruption of the volcano continues. A danger of ash explosions up to 10 km (32,800 ft) a.s.l. remains. Ongoing activity could affect international and low-flying aircraft. The extrusive-effusive eruption of the volcano continues: a lava is extruded out in the explosive crater of the Young Sheveluch, it is accompanied by powerful gas-steam activity, and sometimes an incandescence of the lava dome. A powerful gas-steam activity is also observed at the area of the Karan dome. Satellite data by KVERT 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 4750 m (15580 ft) Aviation Colour Code is ORANGE The summit explosive-effusive eruption of the volcano continues. A danger of ash explosions up to 10 km (32,800 ft) a.s.l. remains. Ongoing activity could affect international and low-flying aircraft. The summit explosive-effusive eruption of the volcano continued all week. Against the background of explosive activity of the Strombolian type (lava fountaining in the volcanic crater up to 1000 m), the lava flows continued to effuse along the Apakhonchichsky, Krestovsky, and Kozyrevsky chutes on the eastern and western slopes of the volcano. Lava flows in the chutes melt buried snowfields and glaciers, and as result of phreatic explosions, old pyroclastic material collapsed from chutes sides and volcanic slopes. On 31 October, the activity of the volcano intensified and developed into the paroxysmal stage of the explosive eruption with the rise of the eruptive cloud up to 14 km a.s.l. The weakening of the volcano's activity was noted at approximately 23:00 UTC on 01 November, but the removal of ash up to 11 km a.s.l. has continued on 02 November. Satellite data by KVERT showed a large thermal anomaly over the volcano all week; ash plumes rose up to 14 km a.s.l. By 20:00 UTC! on 02 November, the height of the ash plume had decreased to 6.5 km a.s.l., the plume was moving north-northeast of the volcano. The eruptive cloud associated with the paroxysmal phase of the explosive eruption continues to be located at the Pacific Ocean area at a distance of more than 3000 km to the east and southeast 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 1156 m (3792 ft) Aviation Colour Code is ORANGE A moderate explosive eruption 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 activity of the volcano continues. According to visual data from Severo-Kurilsk, explosions sent ash up to 2.6 km a.s.l., and ash clouds drifted to the northeast of the volcano. Satellite data by KVERT showed a thermal anomaly over the volcano on 28 October; the volcano was quiet or obscured by clouds during other days of the week. 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 The effusive eruption of the volcano continues. Ongoing activity could affect low-flying aircraft. The effusive eruption of the volcano (extruding a viscous lava flow onto the slopes of the dome) continues, it is accompanied by the collapse of hot avalanches along the eastern slope of the lava dome and a gas-steam activity of the volcano. Satellite data by KVERT showed a thermal anomaly over the volcano all week. http://www.kscnet.ru/ivs/kvert/volc?lang=en&name=Bezymianny IF YOU HAVE ANY QUESTIONS OR CONCERNS, PLEASE CONTACT: Dr. Olga A. Girina, Head of KVERT, IVS FEB RAS E-mail: girina(a)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/ Web-cameras for Kamchatkan volcanoes: http://geoportal.kscnet.ru/volcanoes/webcams.php

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KVERT DAILY RELEASE, November 01, 2023
by KVERT 02 Nov '23

02 Nov '23

KVERT DAILY REPORT Kamchatkan and Kuriles Volcanic Activity November 01, 2023, all time is UTC 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 An extrusive-effusive eruption of the volcano continues: a lava is extruding into the explosive crater of the Young Sheveluch, it is accompanied by powerful gas-steam activity, and sometimes an incandescence of the lava dome. In the area of the Karan dome, powerful gas-steam activity is also observed. Satellite data by KVERT showed a thermal anomaly over the volcano. KLYUCHEVSKOY VOLCANO (CAVW #300260) 56.06 N, 160.64 E; Elevation 4750 m (15580 ft) Aviation Colour Code is ORANGE An explosive-effusive eruption of the volcano continues. Against the background of explosive activity of the Vulcanian type, the lava flows continues to effuse along the Krestovsky, Kozyrevsky and Apakhonchichsky chutes on the north-western, south-western and south-eastern slopes of the volcano. Satellite data by KVERT showed a large bright thermal anomaly over the volcano, and an ash plume and cloud stretched in an arc for 2300 km to the east-south-east of the volcano at the altitude 10-11 km a.s.l. EBEKO VOLCANO (CAVW #290380) 50.69 N, 156.01 E; Elevation 1156 m (3792 ft) Aviation Colour Code is ORANGE A moderate explosive activity of the volcano continues. Satellite data by KVERT showed the volcano was obscured by clouds. BEZYMIANNY VOLCANO (CAVW #300250) 55.97 N, 160.6 E; Elevation 2882 m (9453 ft) Aviation Colour Code is YELLOW An effusive eruption of the volcano continues; a strong fumarolic activity, hot avalanches and an incandescence of the lava dome is accompanied this process. Satellite data by KVERT showed a thermal anomaly over the volcano. CONTACT INFORMATION: Duty scientist: Alexander G. Manevich, E-mail: mag(a)kscnet.ru Tel. Duty scientist: +79622825253 Head of KVERT Dr. Olga A. Girina, E-mail: girina(a)kscnet.ru Tel.: +74152202044 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. The daily satellite monitoring for volcanoes of Kamchatkan and Kuriles are producing of KVERT. KVERT web-page (the Institute of Volcanology and Seismology FEB RAS): http://www.kscnet.ru/ivs/kvert/.

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VONA/KVERT (Klyuchevskoy 2023-147)
by KVERT 02 Nov '23

02 Nov '23

 (1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20231102/2124Z (3) Volcano:Klyuchevskoy (CAVW #300260) (4) Current aviation colour code:ORANGE (5) Previous aviation colour code:red (6) Source:KVERT (7) Notice Number:2023-147 (8) Volcano Location:N 56 deg 3 min E 160 deg 38 min (9) Area:Kamchatka, Russia (10) Summit Elevation:4750 m (15580 ft)(11) Volcanic Activity Summary:The explosive-effusive eruption of the volcano continues. Satellite data by KVERT showed an ash column rose up to 6-6.5 km a.s.l., and an ash plume is extending for 358 km to the north-northeast of the volcano.\n\nThe summit explosive-effusive eruption of the volcano continues. A danger of ash explosions up to 10 km (32,800 ft) a.s.l. remains. Ongoing activity could affect international and low-flying aircraft. (12) Volcanic cloud height:6000-6500 m (19680-21320 ft) AMSL Time and method of ash plume/cloud height determination: 20231102/2050Z – Himawari-9 14m15(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 358 km (222 mi)\nDirection of drift of ash plume/cloud of the volcano: NNE / azimuth 32 deg \nTime and method of ash plume/cloud determination: 20231102/2050Z – Himawari-9 14m15(14) Remarks:An edge of ash cloud of the paroxysmal phase of the Klyuchevskoy eruption extended more than 3000 km to the east-southeast of the volcano.(15) Contacts:Dr. Olga A. Girina, Head of KVERT, IVS FEB RAS\ngirina(a)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/.\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.

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