Kamchatkan
and Northern Kuriles Volcanic Activity
KVERT INFORMATION RELEASE
43-09
Thursday, August 06, 2009, 21:30 UTC (Friday, August 07, 10:30
KDT)
SUMMARY OF LEVEL OF CONCERN COLOR
CODES:
KAMCHATKA:
SHEVELUCH: ORANGE
KIZIMEN, KLYUCHEVSKOY,
KORYAKSKY, BEZYMIANNY and KARYMSKY: YELLOW
TOLBACHIK PLOSKY, AVACHINSKY, GORELY and MUTNOVSKY: GREEN
NORTHERN KURILES:
EBEKO,
CHIKURACHKI and ALAID: GREEN
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 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. According to seismic
data, possibly ash plumes rose up to 7.5 km (24,600 ft) ASL, and gas-steam
plumes with some ash occurred at the volcano this week. According to video data,
ash plumes rose up to 4 km (13,100 ft) ASL on August 02; gas-steam plumes up to
3.5 km (11,500 ft) ASL occurred on August 02, 04. According to satellite data, a
big thermal anomaly was registered over the lava dome all week.
http://www.kscnet.ru/ivs/kvert/current/shv/index.html
KIZIMEN VOLCANO: 55°12'N, 160°32'E; Elevation 2,485 m
CURRENT
LEVEL OF CONCERN COLOR CODE IS YELLOW
Seismic activity of the volcano increased since July 11.
Shallow earthquakes were registered. Strong explosive eruption possible in case
of further seismicity increasing.
Seismicity was above background levels
on July 30, there was no seismic data during other days by technical
reasons.
Kizimen is a conical stratovolcano with a small lava dome at the
summit. Last explosive eruption was on 1928-1929 (VEI 2). Volcano is located on
the western slope of the southern part of Tumrok ridge in 265 km (166 mi) to the
north-east from Petropavlovsk-Kamchatsky.
http://www.ivs.kscnet.ru/ivs/kvert/volcanoes/Kizimen/index_eng.html
KLYUCHEVSKOY VOLCANO; 56° 03'N, 160° 39'E; Elevation 4,750
m
CURRENT LEVEL OF CONCERN COLOR CODE IS YELLOW
Seismic activity of the
volcano gradually increased since July 30, continuous volcanic tremor more than
2x10-6 mps is registering. A thermal anomaly was observed on July 31, August 01.
Explosive activity with ash and gas-steam plumes is possible.
http://www.ivs.kscnet.ru/ivs/kvert/volcanoes/Klyuchevskoy/index_eng.html
KORYAKSKY VOLCANO; 53°19'N, 158°43'E; Elevation 3,456
m
CURRENT LEVEL OF CONCERN COLOR CODE IS YELLOW
A gas-steam activity of the
volcano continues and aerosol plumes could affect low-flying
aircraft.
Seismicity was at background levels. Weak shallow earthquakes
were registered during this week. According to visual data, moderate fumarolic
activity of the volcano was observed. According to satellite data, a thermal
anomaly was not registered.
http://www.kscnet.ru/ivs/kvert/current/krk/index.html
BEZYMIANNY VOLCANO: 55°58'N, 160°36'E; Elevation 2,895
m
CURRENT LEVEL OF CONCERN COLOR CODE IS YELLOW
Growth of the lava dome
continues. Sudden ash emission related to this activity could affect low-flying
aircraft in the vicinity of the volcano.
Seismicity was above background
levels on August 05, and didn't exceeded background levels during other days.
According to visual data, weak fumarolic activity was observed on August 01.
According to satellite data, a thermal anomaly was registered on August
01.
http://www.kscnet.ru/ivs/kvert/current/bzm/index.html
KARYMSKY VOLCANO: 54°03'N, 159°27'E; Elevation 1,486
m
CURRENT LEVEL OF CONCERN COLOR CODE IS YELLOW
Activity of the volcano
continues and a possibility of ash explosions up to 6.0 km (or 19,700 ft) ASL
remains. The explosive activity of the volcano could affect low-flying
aircraft.
Seismicity was above background levels on August 04-05, and at
background levels during other days. According to satellite data, a thermal
anomaly was registered on August 03.
http://www.kscnet.ru/ivs/kvert/current/krm/index.html
IF YOU HAVE ANY QUESTIONS OR CONCERNS, PLEASE
CONTACT:
Alexander Manevich, KVERT, IVS FED RAS
E-mail: mag@kscnet.ru
Tel. (41522)
58325
Oksana Sobolevskaya, 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