Kamchatkan and Northern Kuriles Volcanic Activity
KVERT INFORMATION RELEASE 45-10
September 23, 2010, 22:30 UTC (September 24, 2010, 10:30 KDT)

SUMMARY OF AVIATION COLOR CODES:

KAMCHATKA:
SHEVELUCH, KLYUCHEVSKOY and KARYMSKY: ORANGE
GORELY and BEZYMIANNY: YELLOW
TOLBACHIK PLOSKY, KORYAKSKY, AVACHINSKY, MUTNOVSKY and KIZIMEN: GREEN

NORTHERN KURILES:
EBEKO, CHIKURACHKI and ALAID: GREEN

KLYUCHEVSKOY VOLCANO; 56° 03'N, 160° 39'E; Elevation 4,750  m
AVIATION COLOR CODE IS ORANGE

Explosive-effusive eruption of the volcano continues. Ash explosions > 10.0 km (> 32,800 ft) ASL could occur at any time. The activity of the volcano could affect international and low-flying aircraft.

Seismicity of the volcano was above background levels all week. According to visual data, Strombolian activity was observed on September 17 and 20-21. Ash plumes rose up to 6.5-7.0 km (21,300-23,000 ft) ASL on September 20-21. A lava flow continues to effused from the summit crater down the south-western flank of the volcano. According to satellite data, a big bright thermal anomaly was registered over the volcano all week. Ash plumes reached 6.5 km (21,300 ft) ASL and extended about 60 km (37 mi) to the western directions from the volcano on September 19, and about 240 km (149 mi) to the eastern directions from the volcano on September 20-21.
http://www.kscnet.ru/ivs/kvert/current/klch/index.html

SHEVELUCH VOLCANO: 56°38'N, 161°19'E; Elevation 3,283 m, the dome elevation ~2,500 m
AVIATION COLOR CODE IS ORANGE


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

Seismicity was above background levels last week, and according to seismic data, ash plumes rose up to 3.5 km (11,500 ft) all week. According to visual data, moderate gas-steam plumes with ash were observed on September 21, clouds obscured the volcano on the other days of week. According to satellite data, a thermal anomaly was registered over the lava dome all week. Ash plumes extended about 16 km (10 mi) to the south-east from the volcano on September 21.
http://www.kscnet.ru/ivs/kvert/current/shv/index.html

KARYMSKY VOLCANO: 54°03'N, 159°27'E; Elevation 1,486 m
AVIATION COLOR CODE IS ORANGE


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

Seismicity was above background levels on September 16-20 and at background levels on September 21-22. According to seismic data, possibly weak ash explosions occurred at the volcano on September 16-20. According to satellite data, clouds obscured the volcano.
http://www.kscnet.ru/ivs/kvert/current/krm/index.html

GORELY VOLCANO: 52°33'N, 158°02'E; Elevation 1,828 m
AVIATION COLOR CODE IS YELLOW

Seismic and thermal activity of the volcano remains high. Probably an eruption of Gorely is preparing. Aerosol plumes from the volcano could affect low-flying aircraft.

Seismicity of the volcano was above background levels all week, volcanic tremor continues to be recorded. According to visual data, moderate gas-steam activity of the volcano was observed almost all week.
http://www.kscnet.ru/ivs/kvert/current/grl/index.html

BEZYMIANNY VOLCANO: 55°58'N, 160°36'E; Elevation 2,895 m
AVIATION COLOR CODE IS YELLOW

Grows of the lava dome of the volcano continues and aerosol plumes could affect low-flying aircraft.

Strong volcanic activity of Klyuchevskoy volcano obscured seismic data of Bezymianny all week. According to visual data, moderate gas-steam activity of the volcano was observed on September 17 and 20-21. Clouds obscured the volcano on the other days of week. According to satellite data, a weak thermal anomaly was registered over the lava dome on September 17 and 21, clouds obscured the volcano on the other days of week.
http://www.kscnet.ru/ivs/kvert/current/bzm/index.html

IF YOU HAVE ANY QUESTIONS OR CONCERNS, PLEASE CONTACT:

Dr. Olga A. Girina, KVERT Project, IVS FED RAS
E-mail: girina@kscnet.ru
Tel. (4152) 297-890

Tatiana Kozhevnikova, KVERT Project, KB GS RAS
E-mail: ssl@emsd.ru
Tel. (4152) 298-053

Chris Waythomas, KVERT Project, Acting Scientist-in-Charge, USGS
E-mail: chris@usgs.gov
Tel. (907) 786 7497


The Kamchatkan Volcanic Eruption Response Team (KVERT) 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