Kamchatkan and Northern Kurile Volcanic Activity
INFORMATION
RELEASE 17-06
Friday, April 28, 2006, 11:00 KDT (22:00 UTC on April
27)
SUMMARY OF LEVEL OF CONCERN COLOR
CODES:
KAMCHATKA:
KARYMSKY: ORANGE
SHEVELUCH and BEZYMIANNY: YELLOW
KLYUCHEVSKOY, TOLBACHIK PLOSKY, KIZIMEN,
AVACHINSKY, KORYAKSKY, MUTNOVSKY and GORELY: GREEN
NORTHERN KURILE:
EBEKO, CHIKURACHKI
and ALAID: GREEN
KARYMSKY VOLCANO: 54o03'N, 159o27'E; Elevation 1,486
m.
CURRENT LEVEL OF CONCERN COLOR CODE: ORANGE
Seismic data and satellite observations
indicated that the eruption of the volcano with ash explosions from the summit
crater continues. Ash explosions up to 6 km (or 19,700 ft.) ASL are
possible.
Intermittent eruptive activity at the volcano continues.
According to seismic data, ash plumes rose up to 3,8 km (12,500 ft) ASL this
week. Big thermal anomaly over the volcanic crater was noted during the periods
of visibility of the volcano. Numerous ash plumes and ash deposits extending for
about 10-200 km (6-125 mi) to the south-east and east from the volcano were
observed on satellite images. The activity of the volcano could affect
low-flying aircraft in the vicinity of the volcano.
SHEVELUCH
VOLCANO: 56o38'N, 161o19'E; Elevation 3,283 m, the dome elevation ~2,500
m.
CURRENT LEVEL OF CONCERN COLOR CODE: YELLOW
Growth of the lava dome continues. A
fumarolic activity and thermal anomaly were observed during the periods of
visibility of the volcano. Seismic activity slightly increased last week and ash
explosions up to 6 km (19,700 ft.) ASL could occur at any
time.
BEZYMIANNY VOLCANO: 55o58'N, 160o36'E; Elevation 2,895
m
CURRENT LEVEL OF CONCERN COLOR CODE: YELLOW
Growth of the lava dome continues. A lava
block is extruding at the dome summit. Possibility of an explosive eruption
increased.
Seismic activity was above background levels on April 21-23
and 25-26 and at background levels in the other days. Fumarolic activity and
thermal anomaly at the lava dome were noted during the periods of visibility of
the volcano.
IF YOU HAVE ANY QUESTIONS OR CONCERNS, PLEASE
CONTACT:
Olga Girina, KVERT, IVS FED RAS
E-mail: girina@kscnet.ruTel.
(41522) 58627
Sergey Senykov, 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.ivs.kscnet/ivs/kvert/index.htmlArchive
of daily information KB GS RAS:
ftp://emsd.iks.ru/pub/DATA/RTS/Volcanoes