Kamchatkan and  Northern Kuriles Volcanic Activity
KVERT INFORMATION RELEASE  36-07
Friday, July 27, 2007, 21:40 UTC (July 26, 10:40  KDT)

SUMMARY OF LEVEL OF CONCERN COLOR  CODES:

KAMCHATKA:
SHEVELUCH and KARYMSKY: ORANGE
KLYUCHEVSKOY and BEZYMIANNY : YELLOW
TOLBACHIK  PLOSKY, KIZIMEN, AVACHINSKY, KORYAKSKY, MUTNOVSKY and GORELY:  GREEN

NORTHERN KURILES:
CHIKURACHKI, EBEKO and ALAID:  GREEN

SHEVELUCH  VOLCANO: 56°38'N, 161°19'E; Elevation 3,283 m, the dome elevation  ~2,500 m.
CURRENT LEVEL OF CONCERN COLOR CODE IS  ORANGE

Growth of the lava dome continues. 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.

Seismic activity remains above background levels. Many shallow volcanic earthquakes  and weak intermittent volcanic tremor were
registered. According to seismic data, ash plumes up to 6.0 km (19700 ft) ASL occurred at the volcano last week. Gas-steam plumes up
to 3.0-4.5 km (9,800-14,700 ft) ASL, containing some amount of ash, and avalanches were observed on July 20-24. Clouds obscured the
volcano in other days. According to satellite data, gas-steam plumes extended for about 10 km (6 mi) to the south from the volcano
on July 22, a big thermal anomaly was noted all week.

KARYMSKY VOLCANO: 54°03'N, 159°27'E; Elevation  1,486 m.
CURRENT LEVEL OF CONCERN COLOR CODE IS ORANGE

The eruption of the volcano continues. Ash explosions up to 6 km (or 19,700 ft.) ASL are possible at any time. The activity of the
volcano could affect low-flying aircraft in the vicinity of the volcano.

Seismic activity was above background levels all week, 100-500 shallow volcanic earthquakes and a spasmodic volcanic tremor were
registered at volcano all days. According to seismic data, possibly ash explosions rose up to 4.0 km (13160 ft) ASL all weak.
According to satellite data, a thermal anomaly was noted all week.


KLYUCHEVSKOY VOLCANO;  56°03'N, 160°39'E; Elevation 4,750 m
CURRENT LEVEL OF CONCERN COLOR CODE IS  YELLOW

Activity of the volcano decreased. But sudden ash explosions up to 6 km (19,700 ft.) ASL could affect international and low-flying
aircraft.

Seismic activity was at background levels last week, weak continuous spasmodic volcanic tremor  and a few shallow earthquakes were
registered.  According to video and visual data, gas-steam activity was noted on July 20-24 and the volcano was obscured by clouds
on the other days. According to satellite data, thermal anomaly was noted on July 19, 20-23.

BEZYMIANNY  VOLCANO: 55°58'N, 160°36'E; Elevation 2,895 m
CURRENT LEVEL OF  CONCERN COLOR CODE IS YELLOW

Growth of the lava dome continues. The activity of the volcano could affect low-flying aircraft in the vicinity of the volcano.

Seismic activity was above background levels on July 19-22, did not exceed background levels on the other days. Many shallow
volcanic earthquakes were registered during the weak. According to visual information gas-steam activity was observed on July 22 and
24. According to satellite data a thermal anomaly was noted on July 19, 21-22, clouds obscured the volcano on the other days.

IF YOU HAVE ANY QUESTIONS OR CONCERNS, PLEASE  CONTACT:

Nataliya Malik, KVERT, IVS FED RAS
E-mail: malik@kcsnet.ru
Tel. (41522) 58627
       9622826547

Tat'yana Kozhevnikova, KVERT, KB GS RAS
E-mail: ssl@emsd.iks.ru
Tel.  (41522) 59523

Tom Murray, Scientist-in-Charge, AVO
E-mail: tlmurray@usgs.gov
Tel. 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.

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
KVERT Information Releases at the web-page of  AVO (Alaska Volcano Observatory):
http://www.avo.alaska.edu/activity/avoreport.php?view=kaminfo