SUMMARY OF LEVEL OF CONCERN COLOR  CODES:

NORTHERN KURILES:
CHIKURACHKI, EBEKO and ALAID:  GREEN

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 was slightly above background levels. Many shallow volcanic earthquakes and weak intermittent volcanic tremor were registered. According to seismic data, ash plumes and avalanches up to 6 km (19,700 ft.) ASL occurred at the volcano last week. According to satellite data, a thermal anomaly was noted on August 02-05 and 08-09, volcano was obscured by clouds in other days.

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, 300-800 shallow volcanic earthquakes and a spasmodic volcanic tremor were registered at volcano all days. According to seismic data, possibly ash explosions rose up to 3.0 km (9,850 ft) ASL.

Seismic activity was at background levels. 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 satellite data, thermal anomaly was noted on August 04, volcano was obscured by clouds in other days.

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 slightly above background levels on August 04-05 and at background levels on the other days. Shallow volcanic earthquakes were registered during the weak. According to video data weak gas-steam activity was observed on August 4. According to satellite data a thermal anomaly was noted on August 04, volcano was obscured by clouds in other days.

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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.