Kamchatkan
and Northern Kuriles Volcanic Activity
KVERT INFORMATION RELEASE
18-09
Thursday, April 09, 2009, 23:58 UTC (Friday, April 10, 10:58 KDT)
SUMMARY OF LEVEL OF CONCERN COLOR
CODES:
KAMCHATKA:
KORYAKSKY, SHEVELUCH and KARYMSKY: ORANGE
KLYUCHEVSKOY, GORELY and BEZYMIANNY:
YELLOW
TOLBACHIK PLOSKY, KIZIMEN,
AVACHINSKYand MUTNOVSKY: GREEN
NORTHERN
KURILES:
EBEKO: YELLOW
CHIKURACHKI and ALAID: GREEN
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. Aerosolic plumes containing ash continues to observing at the volcano. The activity of the volcano could affect low-flying aircraft.
Seismic
activity of the volcano was above background levels on April 07-08 and at background levels in the other days of week. A weak volcanic tremor began to registered from April 07. Aerosolic plumes containing small amount of ash rose up to 5.4 km (17,700 ft) ASL and extended to the north-east, north-west, south-east and south-west from the volcano. According to satellite data, aerosolic plumes containing ash extended about 290 km (180 mi) to the different directions from the volcano all week. 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
The lava
flow continues to effuse on the eastern flanks of the lava dome. Ash explosions up to 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, probably ash plumes up to 7.5 km (24,600 ft) ASL occurred at the volcano on April 03-05 and 08-09. According to visual data, weak and moderate fumarolic activity of the volcano was observed on April 02-07 and 09. According to satellite data, a bright thermal anomaly was registered over the lava dome all week. 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 ORANGE
Activity
of the volcano continues and ash explosions up to 6.0 km (or 19,700 ft) ASL are possible. The explosive activity of the volcano could affect low-flying aircraft.
Seismic activity was above background levels on April 02-03, and at background levels on April 04. There was not seismic data for the other days by technical reasons. According to visual data by volcanologists from IVS FED RAS, there was a moderate fumarolic activity of the volcano on April 09. According to satellite data, a weak thermal anomaly was registered over the volcano on April 05. http://www.kscnet.ru/ivs/kvert/current/krm/index.html
KLYUCHEVSKOY VOLCANO; 56° 03'N, 160° 39'E; Elevation 4,750
m
CURRENT LEVEL OF CONCERN COLOR CODE IS YELLOW
Moderate fumarolic activity of the volcano continues. Gas-steam and/or aerosolic with ash plumes from the volcano could affect low-flying aircraft.
Seismic activity was above background levels on April 2-4 and didn't exceeded background levels in the other days of week. A weak volcanic tremor was registered on April 05-08. A weak and moderate fumarolic activity of the volcano was observed last week. According to satellite data, a weak thermal anomaly was registered over the volcano on April 05-06. http://www.kscnet.ru/ivs/kvert/current/klch/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 didn't exceeded background levels last week. A weak fumarolic activity of the volcano was observed on April 2-3 and 8-9. According to satellite data, a weak thermal anomaly over the dome was registered all week. http://www.kscnet.ru/ivs/kvert/current/bzm/index.html
GORELY VOLCANO: 52°33'N, 158°02'E, Elevation 1,829 m
CURRENT LEVEL OF CONCERN COLOR CODE IS YELLOW
Seismicity of the volcano was above background levels all week. According to visual data, gas-steam plumes rose up to 200 m above the crater of the volcano on April 05 and 09. According to satellite data, the volcano was quiet. KVERT continue to look after Gorely volcano.
Last strong explosive eruption of the volcano Gorely occurred in 1986. Ash plumes rose up to ~ 5.0 km (16,400 ft) ASL. http://www.kscnet.ru/ivs/kvert/current/grl/index.html
EBEKO VOLCANO: Paramushir Island, Northern Kurile: 50°41'N, 156°01'E; Elevation 1,156
CURRENT LEVEL OF CONCERN COLOR CODE IS YELLOW
Strong gas-steam emission sometimes with ash occur at Ebeko at present. 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 the data by observers from Severo-Kurilsk (Paramushir Island), activity of the volcano continues. Gas-steam plumes containing small amount of ash rose up to 3.4 km (11,200 ft) ASL and extended about 8 km (5 mi) mainly to the southern directions from the volcano. Weak ash falls occurred in Severo-Kurilsk on April 05. According to satellite monitoring, there were not noted a thermal anomaly over the volcano and ash plumes from the volcano.
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:
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