Activity of the volcano continues and could affect low-flying aircraft.

Seismic activity of the volcano was above background levels all week and gradually increased to the end of week. The explosive eruption of the volcano occurred from 21:45 UTC on December 16 till 04:00 UTC on December 17. Probably ash plumes rose > 10.0 km (>32,800 ft) ASL. According to satellite data, a thermal anomaly was registering all week, ash plumes extended > 350 km (217 mi) to the north-west from the volcano. A width of ash plumes near Kozyrevsk village was about 20 km (12 mi). Big thermal anomaly over the volcano and on its south-eastern flank was noted after the eruption. Probably the crater of the dome is open at now and deposits of pyroclastic flow to lie on the its slope. According to visual and video data, the volcano was obscured by clouds on December 11-16. Strong ash fall was noted at Kozyrevsk village: a thickness of ash deposits was about 2-3 mm. Ash falls were not noted in the other villages. Strong gas-steam activity of the volcano was observed from 20:00 UTC on December 17.
http://www.kscnet.ru/ivs/kvert/current/bzm/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

Activity of the volcano continues: a new viscous lava flow effuses at the lava dome. 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 all week. According to seismic data, possibly ash plumes rose up to 5.5 km (18,000 ft) ASL last week. According to video data, the volcano was obscured by clouds all week. According to satellite data, a big thermal anomaly was registering over the lava dome all week.
http://www.kscnet.ru/ivs/kvert/current/shv/index.html

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 > 7.0 km (>23,000 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, the volcano was obscured by clouds all week. According to satellite data, a big thermal anomaly was registering over the volcano all week.
http://www.kscnet.ru/ivs/kvert/current/klch/index.html

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

Activity of the volcano continues and ash explosions up to 6.0 km (or 19,700 ft) ASL possible. The explosive activity of the volcano could affect low-flying aircraft.

Seismicity of the volcano was above background levels on December 12-13 and there was no seismic data by technical reasons in the other days of week. According to satellite data, a thermal anomaly was registering over the volcano on December 11-13 and 17.
http://www.kscnet.ru/ivs/kvert/current/krm/index_eng.html

IF YOU HAVE ANY QUESTIONS OR CONCERNS, PLEASE CONTACT:

Dr. Olga Girina, KVERT, IVS FED RAS
E-mail: girina@kscnet.ru
Tel. (41522) 58627

Tatiana Kozhevnikova, KVERT, KB GS RAS
E-mail: ssl@emsd.ru
Tel. (41522) 59523

Dr. Tom Murray, Scientist-in-Charge, USGS
E-mail: tlmurray@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