Printer friendly version
Alaska Volcanoes Update
Friday, January 24, 1997, 12:00 noon AST (2100 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 fourth week.
AVO seismometers continue to record very low levels of seismicity
at the volcano. Although the weather has prevented any
ground observations from Cold Bay or Nelson Lagoon, pilots saw
no significant eruptive activity during overflights this week. This
morning, a pilot did report weak emission of steam and possibly
minor ash rising to an estimated 14,000 feet, mixing with a cloud
layer, and drifting southeast. 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 less
than one earthquake per day, a significant reduction from last
week's rate of 11 per day.