Kamchatkan and Northern Kuriles Volcanic Activity
KVERT INFORMATION RELEASE 29-07
Friday, June 28, 2007, 21:30 UTC (June 29, 10:30 KDT)
SUMMARY OF LEVEL OF CONCERN COLOR CODES:
KAMCHATKA:
KLYUCHEVSKOY: RED
SHEVELUCH and KARYMSKY: ORANGE
BEZYMIANNY : YELLOW
TOLBACHIK PLOSKY, KIZIMEN, AVACHINSKY, KORYAKSKY, MUTNOVSKY and GORELY: GREEN
NORTHERN KURILES:
CHIKURACHKI, EBEKO and ALAID: GREEN
CURRENT CHANGES IN COLOR CODE:
KLYUCHEVSKOY IS NOW AT LEVEL OF CONCERN COLOR CODE RED
KLYUCHEVSKOY VOLCANO; 56°03'N, 160°39'E; Elevation 4,750 m
CURRENT LEVEL OF CONCERN COLOR CODE IS RED
PREVIOUS LEVEL OF CONCERN COLOR CODE: ORANGE
The strong explosive-effusive eruption of the volcano continues. Ash explosions up to 10 km (32,000 ft.) ASL could occur at any time and could affect international and low-flying aircraft.
Seismic activity of Kluchevskoy increased at 03 h 50 min on June 28. According to video data clouds or dark time obscured the volcano till 19 h 30 min on June 28. Ash plume was registered from 19 h 30 min to 21 h 00 min (present time). Height of this ash plume was up to 9 km ASL. Seismicity was above background levels this week: volcanic earthquakes and a medium volcanic tremor were registered.
According to visual and video data, clouds obscured the volcano on June 21-27. Ash fall was noted in Kozyrevsk on June 22 According to satellite data, a thermal anomaly was noted on June 22-23 and 26-27. Ash plumes extended for 25-860 km (16-354 mi) to different directions on June 21-24 and 28. Approximate plumes altitudes based on atmospheric profiles were 4500-9500 m (14,400-30,400ft) ASL.
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
Growth of the lava dome continues. 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.
Seismic activity remains above background levels. Many shallow volcanic earthquakes were registered. According to seismic data, ash plumes up to 6.5 km (20800 ft) ASL occurred at the volcano last week. Clouds obscured the volcano all week. According to satellite data, a big thermal anomaly was noted all week.
KARYMSKY VOLCANO: 54°03'N, 159°27'E; Elevation 1,486 m.
CURRENT LEVEL OF CONCERN COLOR CODE IS ORANGE
The eruption of the volcano continues. Ash explosions up to 6 km (or 19,700 ft.) ASL are possible at any time. The activity of the volcano could affect low-flying aircraft in the vicinity of the volcano.
Seismic activity was above background levels all week. According to seismic data, possibly ash explosions rose up to 4.7 km (~15,400 ft) ASL all days. According to satellite data, gas-steam plume was noted on June 27, volcano was obscured by clouds in other days.
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. The activity of the volcano could affect low-flying aircraft in the vicinity of the volcano.
Strong seismicity at nearby Klyuchevskoy makes it difficult to characterize seismicity at Bezymianny. One volcanic earthquake was registered on June 25. According to visual and satellite data, clouds obscured the volcano all days.
IF YOU HAVE ANY QUESTIONS OR CONCERNS, PLEASE CONTACT:
Sergey Ushakov, KVERT, IVS FED RAS
E-mail: ushakov@xxxxxxxxx
Tel. (41522) 58627
Tat'yana Kozevnikova, KVERT, KB GS RAS
E-mail: ssl@xxxxxxxxxxx
Tel. (41522) 59523
Tom Murray, Scientist-in-Charge, AVO
E-mail: tlmurray@xxxxxxxx
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.html
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
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