SPECIAL NOTICE:
From May 06, AVO will no
longer relay email information releases from
KVERT. Information regarding
Kamchatkan volcano activity is sent
directly from KVERT staff in
Petropavlovsk-Kamchatsky.
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Kamchatkan
and Northern Kurile Volcanic Activity
INFORMATION RELEASE 47-05
Friday,
September 02, 2005, 10:20 KDT (21:20 UTC on September 01)
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 KURILE:
EBEKO, CHIKURACHKI and
ALAID: GREEN
SHEVELUCH VOLCANO: 56o38'N, 161o19'E;Elevation 3,283
m, the dome elevation ~2,500 m.
CURRENT LEVEL OF CONCERN COLOR CODE:
ORANGE
Growth of the lava dome continues. At any time explosions
could produce ash plumes that rise as
high as 8 km (or 25,000 ft.) ASL, as
well as localized ash fall and hot avalanches. The nearest
seismic station
from the volcano was destroyed by the eruption of February 28,
2005.
An effusion of viscose lava flow at the lava dome continues.
There were registered five ash
plumes up to 5.5 km (or 18,050 ft.) ASL on
August 28-29, two shallow earthquakes on August 28, a
big thermal anomaly all
week, incandescence at the dome on August 28, and a fumarolic
activity.
KARYMSKY VOLCANO: 54o03'N, 159o27'E; Elevation 1,486
m.
CURRENT LEVEL OF CONCERN COLOR CODE: ORANGE.
Seismic activity is above background levels. The danger of a
sudden explosion or series of
explosions of ash up to 6 km (or 19,700 ft.)
ASL, as well as localized ash fall and hot
avalanches, exists.
According to seismic data, possible ash-gas plumes up to 4.5
km (or 14,800 ft.) ASL were
registering this week. A big thermal anomaly on
August 26-28; ash plumes are extending to the
south-east about 150 km on the
height possibly 4-3 km (13,100-9,800 ft. ASL) on August 27, and
ash cloud
(~20 km or 12.4 mi longwise) - in 80 km or ~50 mi from the volcano on the
height
approximately 5.8 km (or 19,000 ft.) ASL on August 27, were
noted.
BEZYMIANNY VOLCANO: 55o58'N, 160o36'E; Elevation 2,895
m
CURRENT LEVEL OF CONCERN COLOR CODE: YELLOW.
The volcanological field research and development on
July-August 2005 showed that unrest at the
volcano continues.
One weak shallow earthquake on August 28, a gas-steam activity
and a thermal anomaly at the lava
dome on August 28-29, were registered this
week.
IF YOU HAVE ANY QUESTIONS OR CONCERNS, PLEASE
CONTACT:
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 Service(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.