Kamchatkan and Northern Kuriles Volcanic Activity
KVERT INFORMATION RELEASE 23-11
April 28, 2011, 23:15 UTC (April 29, 2011, 11:15 KDT)

KAMCHATKA
Real-time seismic data:
KIZIMEN, SHEVELUCH and KARYMSKY: ORANGE
BEZYMIANNY and GORELY: YELLOW
KLYUCHEVSKOY, TOLBACHIK PLOSKY, USHKOVSKY, KORYAKSKY, AVACHINSKY, MUTNOVSKY: GREEN

No seismic data: ICHINSKY, VYSOKY, GAMCHEN, KOMAROV, KRONOTSKY, KRASHENINNIKOV, KIKHPINYCH, TAUNSHITS, MALY SEMYACHIK, ZHUPANOVSKY, OPALA, KSUDACH, ZHELTOVSKY, ILIINSKY, KOSHELEV, KAMBALNY, DIKII GREBEN, KHODUTKA and KHANGAR: GREEN

NORTHERN KURILES
No seismic data: EBEKO, CHIKURACHKI, ALAID, TATARINOV, FUSS PEAK and KARPINSKY: GREEN

CURRENT CHANGES IN AVIATION COLOR CODE:
KAMCHATKA
AVIATION COLOR CODE OF BEZYMIANNY IS YELLOW

BEZYMIANNY VOLCANO (1000-25)
55°58'N, 160°36'E; Elevation 9,455 ft (2,882 m)
CURRENT AVIATION COLOR CODE IS
YELLOW
PREVIOUS AVIATION COLOR CODE IS ORANGE

Effusion of viscous lava flow at the dome slope continues. Small ash plumes from hot avalanches is possible. Ash and aerosol plumes could affect low-flying aircraft.

There was not seismic data all week due to technical reasons. According to visual data, moderate gas-steam activity was observing on April 22 and 24-25. According to satellite data, a bright thermal anomaly over the lava dome was registering all week, a gas-steam plume extended 27 km (17 mi) to the north-west on April 22.
http://www.kscnet.ru/ivs/kvert/current/bzm/index.html

KIZIMEN VOLCANO (1000-23)
55°08'N, 160°19'E; Elevation 8,151 ft (2,485 m)
AVIATION COLOR CODE IS
ORANGE

Moderate explosive eruption of the volcano continues. Strong ash explosions up to 10 km (or 32,800 ft) ASL could occur at any time. Ongoing activity could affect international and low-flying aircraft.

There was not seismic data all week due to technical reasons. According to visual data, gas-steam plumes containing small amount of ash rose up to 3.5 km (11,500 ft) ASL and extended to the west on April 20-21. A big bright thermal anomaly was registering over the volcano all week at satellite images. Ash plumes extended about 135 km (84 mi) to the different directions from the volcano this week.

*****
History of Kizimen eruptions is unknown. We have incomplete data about only one eruption in 1928-1929 which were likely moderate explosive (or explosive-effusive) events. Tephrachronological data point out several catastrophic eruptions in evolution of this volcano.
http://www.kscnet.ru/ivs/kvert/current/kzm/index.html

SHEVELUCH VOLCANO (1000-27)
56°38'N, 161°19'E; Elevation 3,283 m, the dome elevation ~8,200 ft (~2,500 m)
AVIATION COLOR CODE IS
ORANGE

Explosive-extrusive eruption of the volcano continues. Ash explosions up to 10 km (or 32,800 ft) ASL could occur at any time. Ongoing activity could affect international and low-flying aircraft.

Seismicity of the volcano continues, and according to seismic data, possible ash plume rose up to 6.7 km (22,000 ft) ASL this week. According to visual data, ash plumes rose up to 7.5 km (24,600 ft) ASL and extended to the northern and south-eastern directions on April 22 and 25-27. According to satellite data, ash plumes rose up to 8.0 km (26,240 ft) ASL on April 27. Ash plumes extended about 153 km (95 mi) to the north from the volcano on April 22. Ash clouds were noted as far as 400 km (248 mi) to the south-east from the volcano on April 23-24 and 27. A thermal anomaly was registered over the lava dome all week.
http://www.kscnet.ru/ivs/kvert/current/shv/index.html

KARYMSKY VOLCANO (1000-13)
54°03'N, 159°27'E; Elevation 4,874 ft (1,486 m)
AVIATION COLOR CODE IS ORANGE


Explosive activity of the volcano continues. Ash explosions up to 6.0 km (or 19,700 ft) ASL could occur at any time. Activity of the volcano could affect low-flying aircraft.

Moderate seismic activity of the volcano continues, possible ash plumes rose up to 3.4 km (11,150 ft) ASL. According to visual data, moderate explosive activity of the volcano continues. According to satellite data, gas-steam plumes extended about 38 km to the southern directions from the volcano on April 22-23; a thermal anomaly was registering over the volcano all week.
http://www.kscnet.ru/ivs/kvert/current/krm/index.html

GORELY VOLCANO (1000-07)
52°33'N, 158°02'E; Elevation 5,996 ft (1,828 m)
AVIATION COLOR CODE IS YELLOW


Seismic and thermal activity of the volcano remains high. This ongoing unrest may eventually lead to an explosive eruption. Aerosol plumes from the volcano could affect low-flying aircraft.

Moderate seismic activity of the volcano continues and weak volcanic tremor was registered at the volcano all week. According to visual data, a moderate gas-steam activity was observed on April 24. The lake into the active crater of the volcano disappeared. According to satellite data, a weak thermal anomaly was registered over the volcano on April 22-24 and 27.
http://www.kscnet.ru/ivs/kvert/current/grl/index.html


BEGINNING IN NOVEMBER 2010, KVERT WILL ASSIGN AN AVIATION COLOR CODE FOR 22 ADDITIONAL VOLCANOES OF KAMCHATKA AND THE NORTHERN KURILES. THESE VOLCANOES ARE NOT PRESENTLY MONITORED WITH SEISMIC INSTRUMENTS HOWEVER KVERT SCIENTISTS EXAMINED SATELLITE INFORMATION EACH DAY TO LOOK FOR EVIDENCE OF VOLCANIC UNREST SINCE 2002. NOT ALL OF THESE VOLCANOES HAD ERUPTIONS IN HISTORICAL TIME, HOWEVER THEY ARE POTENTIALLY ACTIVE AND THEREFORE ARE OF CONCERN TO AVIATION.

INFORMATION ABOUT VOLCANOES OF KAMCHATKA AND THE NORTHERN KURILES:
http://www.kscnet.ru/ivs/kvert/volcanoes/index_eng.html

WEB CAMERAS IN KAMCHATKA:

KLYUCHEVSKOY VOLCANO:
http://data.emsd.iks.ru/videokry/kly.jpg , http://www.kscnet.ru/ivs/kvert/video_camera/Klyu.html
SHEVELUCH VOLCANO:
http://data.emsd.ru/videokry/svl.jpg
BEZYMIANNY VOLCANO:
http://data.emsd.iks.ru/videokzy/videokzy.htm
AVACHINSKY VOLCANO:
http://data.emsd.iks.ru/videokry/capture.jpg
GORELY VOLCANO:
http://www.kscnet.ru/ivs/kvert/video_camera/gorely/index.html

IF YOU HAVE ANY QUESTIONS OR CONCERNS, PLEASE CONTACT:

Dr. Olga Girina, KVERT Project, IVS FED RAS
E-mail: girina@kscnet.ru
Tel. (4152) 29-78-90

Sergey Senyukov, KVERT Project, KB GS RAS
E-mail: ssl@emsd.ru
Tel. (4152) 431-831

Dr. John Power, KVERT Project, USGS
E-mail: jpower@usgs.gov
Tel. (907) 786-7426


The KVERT Project is a non-commercial cooperative program of the Alaska Volcano Observatory (AVO, USA), the Institute of Volcanology and Seismology (IVS) FED RAS and the Kamchatkan Branch of Geophysical Survey (KB GS) RAS (Russia). KVERT staff is available in the office from 8:30 AM till 6:00 PM (KST or KDT) and by phone during the evenings. KVERT uses daily satellite imagery, information from remote scientific observation stations, real-time seismic data for 10 volcanoes, and other information to monitor activity at Kamchatkan and Northern Kuriles Volcanoes.

The official web-page of KVERT (the Institute of Volcanology and Seismology FED RAS): http://www.kscnet.ru/ivs/kvert/index_eng.php
Archive of daily information KB GS RAS: ftp://emsd.iks.ru/pub/DATA/RTS/Volcanoes
KVERT Information Releases at the web-page of AVO (Alaska Volcano Observatory): http://www.avo.alaska.edu/activity/avoreport.php?view=kaminfo