Kamchatkan and Northern Kuriles Volcanic Activity
KVERT INFORMATION RELEASE 24-09
Monday, April 27, 2009, 01:05 UTC (14:05 KDT)

KAMCHATKA:
SHEVELUCH: RED

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

Activity of the volcano continues. A danger of a strong explosive eruption of Sheveluch remains. 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.

Seismic activity of the volcano slightly decreased from 20:30 UTC on April 26. A character of volcanic tremor changed from continuous to intermittent. A number of weak shallow events in the area of the volcano decreased but they continue to registering at present. There are partly absences of seismic data from 19:00 UTC on April 26 by technical reasons.

According to video data, gas-steam containing small amount of ash activity of the volcano continues. Plumes extend to the north, north-east from the volcano on the height about 3.5-4 km ASL.

According to satellite data (NOAA 17, 4m5), ash plumes extended about 100 km to the north-east from the volcano at 22:35 UTC on April 26.

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=kaminfo9