SPECIAL NOTICE:
From May 06, AVO will no longer relay email information releases from
KVERT. Information regarding Kamchatkan volcano activity is sent
directly from KVERT staff in Petropavlovsk-Kamchatsky.
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Kamchatkan and Northern Kurile Volcanic Activity
INFORMATION RELEASE 50-05
Thursday, September 22, 2005, 23:35 KDT (10:35 UTC)
 
SHEVELUCH VOLCANO: 56o38'N, 161o19'E;Elevation 3,283 m, the dome elevation ~2,500 m.
CURRENT LEVEL OF CONCERN COLOR CODE:  
RED
PREVIOUS LEVEL OF CONCERN COLOR CODE: ORANGE
 
According to seismic data, at 05:15 UTC on September 22, began a paroxysmal eruption of
Sheveluch volcano. This eruption continues at present. Approximately ash plumes reach a height
about 7,500 m (~24,600 ft) ASL. Probably hot avalanches and pyroclastic flows are forming at the
flanks of the volcano. According to visual data by seismologists, who are working now at
south-western flank of the volcano (about 9 km from the lava dome), ash fall was noted from 06:00
till 08:00 UTC on September 22.
 
IF YOU HAVE ANY QUESTIONS OR CONCERNS, PLEASE CONTACT:
 
Olga Girina, KVERT, IVS FED RAS
E-mail:
girina@kscnet.ru
Tel. (41522) 58627
 
Svetlana Droznina, KVERT, KB GS RAS
E-mail:
ssl@emsd.iks.ru
Tel. (41522) 59523
 
Tom Murray, Scientist-in-Charge, AVO
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 Service(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 Kurile Volcanoes.
 
The official web-page of KVERT (the Institute of Volcanology and Seismology FED RAS):
http://www.kscnet.ru/ivs/kvert/index.html Archive of daily information KB GS RAS:
ftp://emsd.iks.ru/pub/DATA/RTS/Volcanoes .