Kamchatkan and Northern Kuriles Volcanic Activity
KVERT INFORMATION RELEASE 51-09
Thursday, September 10, 2009, 20:50 UTC (Friday, September 11, 09:50 KDT)

KAMCHATKA:

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

Strong explosive eruption of Sheveluch volcano with ash explosions >10 km (>32,800 ft) ASL probably continues. The activity of the volcano could affect international and low-flying aircraft.

According to seismic data, strong explosions of Sheveluch volcano occurred from ~14:19 to ~14:55 UTC on September 10. According to an interpretation of seismic signals, ash plumes rose up to >15,000 m (> 49,200 ft) ASL.

Next seismic signals detected a movement (during 8 minutes) of pyroclastic flows from the lava dome of the volcano at 15:57 UTC on September 10. Ash plumes from pyroclastic flows rose up to ~10,000 m (~32,800 ft)ASL (according to seismic signals).

No visual and satellite data about this events - the volcano obscures by clouds.
http://www.kscnet.ru/ivs/kvert/current/shv/index.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