Kamchatkan
and Northern Kuriles Volcanic Activity
KVERT INFORMATION RELEASE
40-09
Thursday, July 23, 2009, 20:30 UTC (Friday, July 24, 10:30
KDT)
SUMMARY OF LEVEL OF CONCERN COLOR
CODES:
KAMCHATKA:
SHEVELUCH: ORANGE
KORYAKSKY, BEZYMIANNY and
KARYMSKY: YELLOW
KLYUCHEVSKOY, TOLBACHIK
PLOSKY, KIZIMEN, AVACHINSKY, GORELY and MUTNOVSKY: GREEN
NORTHERN KURILES:
EBEKO:
YELLOW
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 at background levels on July 19 and above
background levels during other days. According to seismic data, possibly ash
plumes rose up to 5.2 km (17,000 ft) ASL on July 16, 20-22, and gas-steam plumes
with some ash occurred at the volcano this week. According to video data,
gas-steam plume rose up to 3.7 km (12,100 ft) on July 17-20, 22. According to
satellite data, a big thermal anomaly was registered over the lava dome all
week, steam plume extended up to 40 km (25 mi) on July 18, 20.
http://www.kscnet.ru/ivs/kvert/current/shv/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.
There was no seismic data (technical reason). According to
satellite data, a thermal anomaly was registered on July 17, 20.
http://www.kscnet.ru/ivs/kvert/current/krm/index.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 all week. Weak shallow
earthquakes were registered during this week. According to visual data, a strong
and moderate fumarolic activity of the volcano was observed. According to
satellite data, a thermal anomaly was registered on July 20.
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 didn't exceeded
background levels all week. According to visual data, weak fumarolic activity
was observed on July 20. According to satellite data, a thermal anomaly was
registered on July 20-21.
http://www.kscnet.ru/ivs/kvert/current/bzm/index.html
EBEKO VOLCANO, Paramushir Island, Northern Kurily: 50°41'N,
156°01'E; Elevation 1,156 m
CURRENT LEVEL OF CONCERN COLOR CODE IS YELLOW
Activity of the volcano
continues. Moderate gas-steam emission sometimes with small amount of ash occur
at Ebeko. The danger of sudden ash explosions up to 3.5 km (11,500 ft) ASL
exists. Activity of the volcano could affect low-flying
aircraft.
According to satellite monitoring, a thermal anomaly and ash
plumes were not registered.
Ebeko volcano is not monitored with seismic
instruments. KVERT uses satellite monitoring and receives occasional visual
observations from Paramushir Island.
http://www.kscnet.ru/ivs/kvert/current/ebk/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
Tat`yana 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