Kamchatkan and Northern Kuriles Volcanic
Activity
KVERT INFORMATION RELEASE 36-09
Thursday, June 25, 2009, 23:30
UTC (Friday, June 26, 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 above background levels all week. According to
seismic data, possibly ash plumes rose up to 6.8 km (20,000 ft) ASL, and weak
gas-steam plumes with some ash occurred at the volcano this week. Pyroclastic
flows occurred since 11:04 to 13:06 on June 25. According to video data, ash
plumes up to 5 km (16,400 ft) ASL were observed on June 20. Strong and moderate
gas-steam activity of the volcano was observed during other time of the last
week. According to satellite data, a big thermal anomaly was registered over the
lava dome all week. Ash cloud more then 100 km (63 mi) length was traveling
SW-NE bidirectionaly on June 25. Ash plumes extended up to 114 km (71 mi) to the
south from the volcano on June 20, 22-24.
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.
Seismicity was at background levels all week. According to
satellite data, a thermal anomaly was registered over the volcano on June 20,
22.
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.
Seismic activity of the volcano was at background levels all
week. According to visual data, a strong and moderate fumarolic activity of the
volcano was observed all week. According to satellite data, a thermal anomaly
over the volcano 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.
Seismic activity of the volcano
was above background levels on June 24 and didn't exceeded background levels
during other days. According to satellite data, a thermal anomaly was noted over
the lava dome on June 20.
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
Svetlana Droznina, 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.