Kamchatkan
and Northern Kuriles Volcanic Activity
KVERT INFORMATION RELEASE
49-09
Monday, August 31, 2009, 02:15 UTC (15:15 KDT)
SUMMARY OF LEVEL OF CONCERN COLOR
CODES:
KAMCHATKA:
SHEVELUCH, KORYAKSKY: ORANGE
KLYUCHEVSKOY and BEZYMIANNY : YELLOW
TOLBACHIK PLOSKY, KARYMSKY, AVACHINSKY, GORELY, MUTNOVSKY and KIZIMEN: GREEN
NORTHERN KURILES:
EBEKO,
CHIKURACHKI and ALAID: GREEN
KAMCHATKA:
KIZIMEN VOLCANO: 55°12'N, 160°32'E; Elevation 2,485 m
CURRENT
LEVEL OF CONCERN COLOR CODE ISGREEN
PREVIOUS AVIATION COLOR CODE WAS YELLOW
Weak seismic activity of the volcano continues but according to the data by volcanologists, who worked at the volcano last week, only gas-steam plumes coming from the summit region of Kizimen volcano. Such activity is normal for this volcano. At the present time there are no every indications that a strong explosive eruption of this volcano will occur in nearest future.
KVERT staff will continue to monitor Kizimen volcano.
Seismicity of the volcano has decreased to the background levels from August 23 and remains the same till now. According to satellite data, the volcano was quiet or obscured by clouds all August.
http://www.kscnet.ru/ivs/kvert/volcanoes/Kizimen/index_eng.html
KARYMSKY VOLCANO: 54°03'N, 159°27'E; Elevation 1,486
m
CURRENT LEVEL OF CONCERN COLOR CODE IS GREEN
PREVIOUS AVIATION COLOR CODE WAS YELLOW
Weak seismic activity of the volcano continues but there was no information about explosive bursts at this volcano last two weeks. But Karymsky is the active volcano and strong ash explosions possible.
KVERT staff will continue to monitor Kizimen volcano.
Seismicity of the volcano has decreased to the background levels from August 22 and remains the same till now. According to satellite data, only a small thermal anomaly was registering over the volcano on August 21. There were no ash plumes near Karymsky volcano last two weeks.
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 ORANGE
Activity of the volcano continues and ash plumes could affect low-flying aircraft.
Seismicity was slightly above background levels on August 20-23 and didn't exceeded background levels in the other days of week. According to visual data, gas-steam plumes containing ash raising up to 3.7 km (12,100 ft) ASL and extending to the different directions from the volcano were observed on August 26-27. According to satellite data, ash plumes extending > 385 km (> 239 mi) mainly to the eastern directions from the volcano were registered on August 20-27.
http://www.kscnet.ru/ivs/kvert/current/krk/index.html
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 4.8 km (15,700 ft) ASL at the lava dome last week. According to volcanological data, seismic signals correspond to hot avalanches at the lava dome. Gas-steam plumes rose up to 3.3 km (10,800 ft) ASL on August 20-23 and 26-27. Clouds obscured the volcano on August 24-25. According to satellite data, a big thermal anomaly was registering over the lava dome all week.
http://www.kscnet.ru/ivs/kvert/current/shv/index.html
KLYUCHEVSKOY VOLCANO; 56° 03'N, 160° 39'E; Elevation 4,750
m
CURRENT LEVEL OF CONCERN COLOR CODE IS YELLOW
Activity of the volcano continues. Explosive eruption with ash and gas-steam plumes could affect international and low-flying aircraft.
Seismicity was above background levels on August 20-22, and at background levels during other days. Gas-steam activity of the volcano was observing on August 20-22 and 26, and the volcano was obscured by clouds on August 23-25. According to satellite data, a thermal anomaly was registering over the volcano on August 20-22 and 26.
http://www.kscnet.ru/ivs/kvert/volcanoes/Klyuchevskoy/index_eng.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 during this week. Moderate fumarolic activity of the volcano was observed on August 20-22 and 26-27. The volcano was obscured by clouds during other days. According to satellite data, a weak thermal anomaly was registering over the volcano on August 22 and 26.
http://www.kscnet.ru/ivs/kvert/current/bzm/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=kaminfo