Kamchatkan and Northern Kuriles Volcanic Activity
KVERT INFORMATION RELEASE 25-07
Friday, June 14, 2007, 21:30 UTC (June 15, 10:30 KDT)
 
SUMMARY OF LEVEL OF CONCERN COLOR CODES:
 
KAMCHATKA:
KLYUCHEVSKOY, SHEVELUCH and KARYMSKY: ORANGE
BEZYMIANNY : YELLOW
TOLBACHIK PLOSKY, KIZIMEN, AVACHINSKY, KORYAKSKY, MUTNOVSKY and GORELY: GREEN
 
NORTHERN KURILES:
CHIKURACHKI, EBEKO and ALAID: GREEN
 
KLYUCHEVSKOY VOLCANO; 56°03'N, 160°39'E; Elevation 4,750 m
CURRENT LEVEL OF CONCERN COLOR CODE IS ORANGE
 
Explosive-effusive eruption of the volcano continues. Ash explosions up to 8 km (26,250 ft.) ASL are possible without warning and could affect international and low-flying aircraft.
 
Seismicity remains above background levels. Volcanic earthquakes and strong volcanic tremor were registered. According to visual and video data, ash plumes rose up to 7.0 km (23,000 ft) ASL and extended to the east, south-east and north-west from the volcano on June 08-10 and 13. Strombolian and Vulcanian activity of the summit crater, lava flows and phreatic bursts at the south-eastern flank of the volcano were observed on June 08 and 13. Clouds obscured the volcano on other days. According to satellite data, ash plumes extended for about 120 km (75 mi) to different directions all week. A large thermal anomaly persists.
 
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 6.3 km (20,700 ft) ASL occurred at the volcano last week. Gas-steam plumes up to 4.0 km (13,100 ft) ASL were observed on June 08-10 and 13, ash plumes rose up to 4.5 km (14,800 ft) ASL and extended to the south-east and east on June 08-10. Clouds obscured the volcano on other days. According to satellite data, ash plumes extended for 45 km (28 mi) to the north-west from the volcano on June 12. 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
 
An 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 almost all week. According to seismic data, possibly ash explosions rose up to 6.8 km (~22,300 ft) ASL on June 08-13. According to satellite data, ash plumes extended for 30 km (19 mi) to the south and south-west from the volcano on June 11. A thermal anomaly was noted again on June 9-10 and 12-13.
 
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. According to visual and video data, gas-steam plumes rose up to 3.0 km (9,900 ft) ASL and extended to the south-east on June 08 and 12-13. Clouds obscured the volcano on the other days. According to satellite data, a thermal anomaly over the lava dome was noted on June 08, 10 and 12.
 
IF YOU HAVE ANY QUESTIONS OR CONCERNS, PLEASE CONTACT:
 
Olga Girina, KVERT, IVS FED RAS
E-mail: girina@kscnet.ru
Tel. (41522) 58627
 
Svetlana Toloknova, KVERT, KB GS RAS
E-mail: ssl@emsd.iks.ru
Tel. (41522) 59523
 
Tom Murray, Scientist-in-Charge, AVO
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.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