Scientists of KVERT Project return to the full KVERT operations (the information ensuring of air services for the results of daily analysis and evaluation of activity of Kamchatka and Northern Kuriles volcanoes) and will discharge these obligations for 01 February - 30 April 2010
Kamchatkan and Northern Kuriles Volcanic
Activity
KVERT INFORMATION RELEASE 09-10
Thursday, February 25, 2010, 23:20 UTC (Friday, February 26, 11:20 KST)
SUMMARY OF AVIATION
COLOR CODES:
KAMCHATKA:
SHEVELUCH and KLYUCHEVSKOY: ORANGE
KARYMSKY and BEZYMIANNY: YELLOW
TOLBACHIK PLOSKY, KORYAKSKY, AVACHINSKY,
GORELY, MUTNOVSKY and KIZIMEN: GREEN
NORTHERN KURILES:
EBEKO,
CHIKURACHKI and ALAID: GREEN
CURRENT CHANGES IN AVIATION COLOR CODE
KARYMSKY IS NOW AT AVIATION COLOR CODE: YELLOW
KARYMSKY VOLCANO: 54°03'N, 159°27'E; Elevation 1,486
m
CURRENT AVIATION COLOR CODE IS YELLOW
PREVIOUS AVIATION COLOR CODE IS ORANGE
Weak activity of the volcano continues but ash plumes were not observing last time and a thermal anomaly over the volcano was small and weak. But 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.
Seismic activity of the volcano was above background levels on February 20-21 and 23-24 and was at background levels in the other days of week. According to seismic data, possibly weak ash-gas bursts occurred last week. According to satellite data, a weak thermal anomaly was registering over the volcano on February 22 and 24. Clouds obscured the volcano in the other days of week.
http://www.kscnet.ru/ivs/kvert/current/krm/index.html
KLYUCHEVSKOY VOLCANO; 56° 03'N, 160° 39'E; Elevation 4,750
m
AVIATION COLOR CODE IS ORANGE
Explosive-effusive eruption of the
volcano continues. Ash explosions > 7.0 km (>23,000 ft)ASL could occur at
any time. The activity of the volcano could affect international and low-flying
aircraft.
Seismicity of the volcano was above background levels all week. According to visual data, gas-steam plumes rose up to 6.3 km (20,700 ft) ASL on February 22-25. Strombolian activity of the volcano continues. A height of bursts was about 300 m above the crater. Clouds obscured the volcano in the other days. An effusion of two lava flows on the north-western volcanic flank (Krestovsky chute and some to south), continues. Phreatic bursts sometimes were observed at fronts of these lava flows. According to satellite data, a big thermal anomaly was registering over the volcano all week. Gas-steam plumes extended about 90 km (55.8 mi) to the north-north-west from the volcano on February 23 and about 25 km (15.5 mi) to the east-south-east on February 24.
http://www.kscnet.ru/ivs/kvert/current/klch/index.html
SHEVELUCH VOLCANO: 56°38'N, 161°19'E; Elevation 3,283 m, the
dome elevation ~2,500 m
AVIATION 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 5.0 km (16,400 ft) ASL last week. According to visual data, a small ash fall simultaneously with snow fall was noted at Klyuchi village on February 21. A moderate fumarolic activity of the volcano was observing on February 18 and 22-25, clouds obscured the volcano in the other days. According to satellite data, a big thermal anomaly was registering over the lava dome all week. Ash plumes extending about 30 km (18.6 mi) to the north and east from the volcano were noted on February 23 and 25, respectively. Gas-steam plumes extended about 60 km (37 mi) to the north from the volcano on February 18 and 22-25.
http://www.kscnet.ru/ivs/kvert/current/shv/index.html
BEZYMIANNY VOLCANO: 55°58'N,
160°36'E; Elevation 2,895 m
AVIATION COLOR CODE IS YELLOW
Activity of the volcano continues and its aerosolic plumes could affect low-flying aircraft.
Strong volcanic activity of Klyuchevskoy volcano obscures seismic data of Bezymianny last week. Strong fumarolic activity of the volcano was observed on February 24 and moderate - on February 22-23 and 25. Clouds obscured the volcano in the other days of week. According to satellite data, a thermal anomaly over the lava dome was registering all week.
http://www.kscnet.ru/ivs/kvert/current/bzm/index.html
IF YOU HAVE ANY QUESTIONS OR CONCERNS, PLEASE
CONTACT:
Dr. Olga Girina, KVERT Project, IVS FED RAS
E-mail: girina@kscnet.ru
Tel. (41522)
58627
Svetlana Toloknova, KVERT Project, KB GS RAS
E-mail: ssl@emsd.ru
Tel. (41522) 59523
John Power, KVERT Project, Acting Scientist-in-Charge, USGS
E-mail: jpower@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