Kamchatkan and Northern Kuriles Volcanic
Activity
KVERT INFORMATION RELEASE 54-07
Thursday, November 01,
2007, 22:30 UTC (Friday, November 02, 10:30 KST)
SUMMARY
OF LEVEL OF CONCERN COLOR
CODES:
KAMCHATKA:
SHEVELUCH and KARYMSKY:
ORANGE
BEZYMIANNY: YELLOW
KLYUCHEVSKOY, TOLBACHIK PLOSKY,
KIZIMEN, AVACHINSKY, KORYAKSKY, MUTNOVSKY and GORELY: GREEN
NORTHERN
KURILES:
CHIKURACHKI: ORANGE
EBEKO and ALAID: GREEN
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 was above background levels. Many shallow
volcanic earthquakes and an intermittent volcanic tremor were registered all
week. According to seismic data, ash plumes up to 6.8 km (22,300 ft) ASL and
small hot avalanches occurred at the volcano all week. According to video data,
ash plumes rose up to 5.3 km (17,400 ft) ASL and gas-steam plumes up to 5.0 km
(16,400 ft) ASL were noted on October 25-26 and 31 and November 01. Clouds
obscured the volcano on the other days. According to satellite data, a big
thermal anomaly was noted all week. Ash plumes extended 70 km (43 mi) to the
south-east from the volcano on October 27-31.
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
on October 25-28 and at background levels on the other days. Many shallow
volcanic earthquakes were registered at the volcano. According to seismic data,
possibly small ash explosions occurred all week. According to satellite data,
there wasn't noted thermal anomaly at the volcano this week probably because
clouds mostly obscured the volcano this week.
CHIKURACHKI VOLCANO
50°19'N, 155°28'E; Elevation 1,816 m
CURRENT LEVEL OF CONCERN COLOR CODE:
ORANGE
Possibly the explosive
eruption of the volcano continues. The activity of the volcano could affect
low-flying aircraft.
According to satellite data, clouds obscured the
volcano this week.
Chikurachki volcano is not monitored with seismic
instruments. KVERT has satellite monitoring and receives occasional visual
observations of this volcano.
BEZYMIANNY VOLCANO: 55°58'N,
160°36'E; Elevation 2,895 m
CURRENT LEVEL OF CONCERN COLOR CODE IS
YELLOW
Growth of the volcano
continues. A viscous lava flow is effusing from the summit dome at Bezymianny.
Sudden ash emission related to this activity could affect low-flying aircraft in
the vicinity of the volcano.
Seismic activity did not exceed background
levels this week. According to satellite data, a weak thermal anomaly over the
volcano was observed on October 30-31. Clouds obscured the volcano all
week.
IF YOU HAVE ANY QUESTIONS OR CONCERNS, PLEASE
CONTACT:
Olga Girina, KVERT, IVS FED RAS
E-mail: girina@kscnet.ru
Tel. (41522)
58627
Tatiana Kozhevnikova, 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