Kamchatkan and Northern Kurile Volcanic Activity
KVERT
INFORMATION RELEASE 06-07
Friday, February 09, 2007, 10:50 KST (22:50 UTC on
February 08)
SUMMARY OF LEVEL OF CONCERN COLOR
CODES:
KAMCHATKA:
KARYMSKY and SHEVELUCH:
ORANGE
KLYUCHEVSKOY and
BEZYMIANNY: YELLOW
TOLBACHIK
PLOSKY, KIZIMEN, AVACHINSKY, KORYAKSKY, MUTNOVSKY and GORELY: GREEN
NORTHERN
KURILE:
EBEKO, CHIKURACHKI and ALAID: GREEN
SHEVELUCH VOLCANO: 56œ38'N,
161œ19'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. A hot lava extrudes at the top of the 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 local aircraft.
Seismic
activity was above background levels last week, over 200 volcanic earthquakes
and volcanic tremor were registered. According to seismic data, probably ash
plumes up to 4.0 km (13,120 ft) ASL occurred at the volcano all week. According
to visual and video and satellite data, gas-steam plumes containing ash rose up
to 5.5 km (18,045 ft) andextended about 120 km (75 mi) to the north-east and
north-west from the volcano last weak. A big thermal anomaly was noting all
week.
KARYMSKY VOLCANO: 54œ03'N, 159œ27'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. The
activity of the volcano could affect low-flying aircraft in the vicinity of the
volcano.
Seismic activity was above background levels last week.
According to seismic data, a number of weak local shallow earthquakes was 80-400
per day and possibly, ash explosions up to 4.0 km (13,123 ft) ASL occurred last
week. According to the data from AMC Yelizovo, a gas-steam plume extending to
the east from the volcano was observed by pilots of local airlines at 22:50 UTC
on February 05. According to satellite data, a thermal anomaly over the volcano
was noted on January 03-04 and 06-07.
BEZYMIANNY VOLCANO:
55œ58'N, 160œ36'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.
Seismic
activity did not exceed background levels all week. According to visual and
video data, gas-steam plumes rose up to 3.5 km (9,843) ASL and extended to the
north-east on February 02-05. According to satellite data, a thermal anomaly
over the lava dome was noted all week.
KLYUCHEVSKOY VOLCANO;
56œ03'N, 160œ39'E; Elevation 4,750 m
CURRENT LEVEL OF CONCERN COLOR CODE IS
YELLOW
Seismic activity of the
volcano continues. The activity of the summit volcanic crater, possibly, could
affect international and low-flying aircraft.
Seismicity was at
background levels on January 01, and above background levels on the other days
of the week. A volcanic tremor was registered on February 01-03 and 05-06.
According to visual observations, a weak fumarolic activity of the volcano was
noted this week.
IF YOU HAVE ANY QUESTIONS OR CONCERNS, PLEASE
CONTACT:
Olga Girina, KVERT, IVS FED RAS
E-mail:
girina@kscnet.ruTel. (41522) 58627
Sergey Senyukov,
KVERT, KB GS RAS
E-mail: ssl@emsd.iks.ruTel. (41522) 59523
Tom Murray,
Scientist-in-Charge, AVO
E-mail: tlmurray@usgs.govTel. 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 Kurile Volcanoes.
The
official web-page of KVERT (the Institute of Volcanology and Seismology FED
RAS): http://www.kscnet.ru/ivs/kvert/index.htmlArchive of daily information KB GS RAS: ftp://emsd.iks.ru/pub/DATA/RTS/VolcanoesKVERT Information Releases at the web-page of AVO
(Alaska Volcano Observatory): http://www.avo.alaska.edu/activity/avoreport.php?view=kaminfo