Kamchatkan and Northern Kuriles Volcanic
Activity
KVERT INFORMATION RELEASE 13-08
Thursday, March 27, 2008, 21:30
UTC (Friday, March 28, 09:30 KST)
SUMMARY OF LEVEL OF CONCERN COLOR
CODES:
KAMCHATKA:
SHEVELUCH and KARYMSKY: ORANGE
BEZYMIANNY: YELLOW
KLYUCHEVSKOY, TOLBACHIK PLOSKY, KIZIMEN,
AVACHINSKY, KORYAKSKY, GORELY and MUTNOVSKY: GREEN
NORTHERN KURILES:
CHIKURACHKI, EBEKO 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
Activity of the volcano continues and 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.
Seismicity was slightly above background level last
week: a large number of weak seismic events and a weak volcanic
tremor was
registered each day. According to seismic data, possible hot avalanches occurred
at the volcano on March
19-22. According to visual and video data,
a moderate and weak fumarolic activity of the dome was observed on
March
20-24 and 27. Clouds obscured the volcano in the other days. According
to satellite data, a thermal anomaly was
registering over the lava dome all
week.
KARYMSKY VOLCANO: 54œ03'N, 159œ27'E;
Elevation 1,486 m.
CURRENT LEVEL OF CONCERN COLOR CODE IS ORANGE
Activity of the volcano continues and ash
explosions up to 6 km (or 19,700 ft.) ASL could occur at any time.
The
explosive activity of the volcano could affect low-flying aircraft
in the vicinity of the volcano.
Seismic activity was above background level on
March 23 and 25-26 and at the background level in the other days of
week.
Small numbers of weak local shallow earthquakes occurred at the area of the
volcano. According to seismic
data, ash plumes up to 3.3 km (10,560 ft)
ASL possibly occurred at the volcano on March 22. Possible weak
ash-gas
explosions or hot avalanches were registered on March 23-26.
According to satellite data, the volcano was quiet or
obscured by
clouds.
BEZYMIANNY VOLCANO: 55œ58'N, 160œ36'E;
Elevation 2,895 m
CURRENT LEVEL OF CONCERN COLOR CODE IS YELLOW
Growth of the lava dome continues. A viscous lava
flow is effusing at the lava dome. Sudden ash emission related to
this
activity could affect low-flying aircraft in the vicinity of the
volcano.
Seismic activity was at background levels on March
20 and 25-26, and didn`t exceed background levels in the other
days.
According to visual and video data, a moderate fumarolic activity was noted at
the lava dome on March 20.
Clouds obscured the volcano in the other days.
According to satellite data, a weak thermal anomaly over the lava
dome
was observing on March 20-24 and 27 .
IF YOU HAVE ANY QUESTIONS OR CONCERNS,
PLEASE CONTACT:
Tatiana Kozhevnikova, KVERT, KB GS
RAS
E-mail: ssl@emsd.iks.ru
Tel. (41522) 59523
Christina Neal, Scientist-in-Charge,
AVO
E-mail: tneal@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
Kuriles Volcanoes.