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.
--------------------------------------------------------------------
Kamchatkan and Northern Kurile Volcanic
Activity
INFORMATION RELEASE 51-05
Friday, September 23, 2005, 10:35 KDT
(21:35 UTC on September 22)
SUMMARY OF LEVEL OF CONCERN
COLOR CODES:
KAMCHATKA:
SHEVELUCH: RED
KARYMSKY:
ORANGE
BEZYMIANNY and KLYUCHEVSKOY: YELLOW
TOLBACHIK PLOSKY,
KIZIMEN, AVACHINSKY, KORYAKSKY, MUTNOVSKY and GORELY: GREEN
NORTHERN
KURILE:
EBEKO: YELLOW
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:
RED
The paroxysmal eruption of the volcano continues. The
explosions produced ash plumes to
height 7.5 km (or 24,600 ft.) ASL. Ash fall
was noted on the south-western flank of the
volcano (~9 km from the lava
dome). From 10:30 till 11:30 UTC on September 22, the most
powerful phase of
the eruption was registered. According to satellite data by USA and
Russia,
ash cloud with a diameter of ~20 km was located in ~90 km to the
north-west of
the volcano. Ash fall was noted in Klyuchi at night on
September 22.
KARYMSKY VOLCANO: 54o03'N, 159o27'E; Elevation 1,486
m.
CURRENT LEVEL OF CONCERN COLOR CODE: ORANGE.
Seismic activity of the
volcano continues. 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
small ash-gas plumes were registered all week. A
thermal anomaly was noted on
September 21.
KLYUCHEVSKOY VOLCANO: 56o03'N, 160o39'E; Elevation
4,750 m
CURRENT LEVEL OF CONCERN COLOR CODE: YELLOW.
Seismic activity of the volcano continues. Possibility of ash
explosions up to 5 km
(16,500 ft.) ASL exists.
Volcanic earthquakes and tremor and weak gas-steam activity
were registered this week.
BEZYMIANNY
VOLCANO: 55o58'N, 160o36'E; Elevation 2,895 m
CURRENT LEVEL OF CONCERN COLOR CODE: YELLOW.
The volcanological field research on July-September 2005
showed that unrest of the
volcano continues.
One shallow
earthquake, a gas-steam activity and a thermal anomaly at the lava dome
were
registered this week.
EBEKO
VOLCANO, Paramushir Island, Northern Kurile: 50o41'N, 156o01'E Elevation 1,156
m
CURRENT LEVEL OF CONCERN COLOR CODE: YELLOW.
Activity of the
volcano continues. Ebeko volcano is not monitored with seismic
instruments.
KVERT has satellite monitoring and occasional visual observations about
this
volcano. The danger of sudden ash explosions up to 3 km (9,840 ft.) ASL
as well as ash
falls at Severo-Kurilsk exists.
According to
visual data, moderate fumarolic activity of the volcanic crater
continues.
IF YOU HAVE ANY QUESTIONS OR CONCERNS, PLEASE
CONTACT:
Olga Girina, KVERT, IVS FED RAS
E-mail:
girina@kscnet.ruTel. (41522)
58627
Svetlana Droznina, 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 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.
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
.