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Alaska Volcanoes Update
Friday, July 11, 1997, 11:30 AM ADT (1930 UTC)
Seismic activity is monitored in real time at the following volcanoes.
Some of the volcanoes listed below may have anomalous
seismicity at present but they are not considered to be at a dangerous
level of unrest (repeated each week).
Spurr, Redoubt, Iliamna, Augustine, Griggs, Katmai, Novarupta,
Trident, Mageik, Martin, Pavlof, Dutton, Akutan, and Makushin
volcanoes are all at or near normal levels of background
seismicity (repeated each week).
ABBREVIATED COLOR CODE KEY
GREEN volcano is dormant; normal seismicity and fumarolic activity occurring
YELLOW volcano is restless; eruption may occur
ORANGE volcano is in eruption or eruption may occur at any time
RED significant eruption is occurring or explosive eruption expected at any time
VOLCANO INFORMATION ON THE INTERNET: http://www.avo.alaska.edu