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ALASKA VOLCANOES UPDATE
Friday, February 25, 2000 11:30 AM
AST (2030 UT)
54°45.33'N 163°58.00'W (CAVW
Summit Elevation 9,373 ft (2,857 m)
LEVEL OF CONCERN COLOR CODE
The small low-frequency seismic
events have continued over the
last week at Shishaldin volcano.
Very low-level tremor has also
been detected during the past
week, although at or below levels
observed months prior to the April
19th, 1999, eruption. No thermal
anomaly has been observed in
satellite imagery and no pilot or
ground observations of unusual
activity have been reported.
Because the nature of the seismic
activity is very low, the absence of
a thermal anomaly, and no reports
of unusual activity, we are staying
at Color Code GREEN.