Kamchatkan
and Northern Kuriles Volcanic Activity
KVERT
INFORMATION RELEASE 38-08
Thursday,
August 14, 2008, 21:00 UTC (Friday, August 15, 10:00
KDT)
SUMMARY
OF LEVEL OF CONCERN COLOR CODES:
KAMCHATKA:
KARYMSKY,
BEZYMIANNY
and
SHEVELUCH: ORANGE
KLYUCHEVSKOY:
YELLOW
TOLBACHIK PLOSKY, KIZIMEN, AVACHINSKY, KORYAKSKY, MUTNOVSKY and GORELY:
GREEN
NORTHERN
KURILES:
CHIKURACHKI:
ORANGE
EBEKO and ALAID: GREEN
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 6.0 km (or 19,700 ft.) ASL are
possible. The explosive activity of the volcano could affect low-flying aircraft
in the vicinity of the volcano.
Seismic
activity of the volcano was at background levels on August 9, 13 and slightly
above background levels on the other days. According to seismic data, possible
ash-gas explosions up to 3.1 km (10,170 ft) ASL occurred at the volcano on
August 7-8, 10-11 and 14. According to satellite data, a thermal anomaly was
noted over the volcano on August 11, clouds obscured the volcano in the other
days.
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 levels all week: volcanic earthquakes and a weak
volcanic tremor were registered at the volcano all week, possible
ash-gas explosion up to 4.5 km (15,000 ft) ASL occurred at the volcano on August
6..
According to visual data, clouds obscured the volcano all days of the week.
According to satellite data, a bright thermal anomaly was registered over the
lava dome all week.
BEZYMIANNY
VOLCANO: 55œ58'N, 160œ36'E; Elevation 2,895 m
CURRENT
LEVEL OF CONCERN COLOR CODE IS ORANGE
Increased
activity of the volcano remains. An explosive eruption with ash plumes up to 10
km (or 32,800 ft.) ASL is possible during next week. The activity of the volcano
could affect international and low-flying aircraft.
Seismic
activity of the volcano was slightly above background levels on August 10-14:
shallow volcanic
earthquakes, indicating hot avalanches were registered on these days. According
to satellite data, a bright thermal anomaly was registered over the lava dome on
August 9-14.
According to visual data, clouds obscured the volcano all
week.