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Alaska Volcanoes Update
Friday, February 7, 1997, 10:30 AM AST (1900 UTC)
Pavlof Volcano: 55.42°N, 161.9°W 8,262 ft
CURRENT LEVEL OF CONCERN CODE IS YELLOW
The eruptive pause at Pavlof Volcano is now beginning its sixth week.
AVO seismometers continue to record very low levels of seismicity
at the volcano. AVO received no pilot reports of activity this
week. On Tuesday, ground observers got a brief glimpse of
the volcano and reported that the summit vent area, which had
been snow covered last week, was bare of snow. Yesterday, the
same observer saw a small steam plume rising from the vent area
several hundred feet up to about the summit level.
Based on comparisons to other historical eruptions at Pavlof, it is
possible that this pause will persist for weeks or months,
followed by resumption of ash and lava emission with little or no
warning. Accordingly, AVO continues to monitor the volcano
closely and will issue further updates as the situation changes.
Iliamna Volcano: 60.04°N, 153.17°W 10,196 ft elevation
The seismic swarm that began on 1 August 1996 beneath Iliamna
Volcano continued during the past week at an average rate of about
4 earthquakes per day.