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Clouds obscured the volcano this week preventing ground and satellite observations. On July 20, an AVO geologist on Adak Island was able to view Kanaga for several hours. As has been reported intermittently by U.S. Fish and Wildlife observers since last fall, fumaroles high on the east and southeast flank of the volcano steamed vigorously and a hazy plume of steam and possibly volcanic gas emanated from the summit crater and drifted a few kilometers downwind. In contrast to other mountain peaks of similar elevation, most of Kanaga was dark and snow-free. One snow patch just below the summit was mantled by debris. It is not known if material mantling the cone is the result of possible activity in late June or, alternatively, merely wind-reworking of material deposited during the extended 1994 eruption.
Clouds obscured the volcano for most of the week preventing ground and satellite observations. On Thursday, however, Perryville residents were able to see the volcano and report light steaming over the summit. Satellite imagery from Thursday did not reveal a hot spot within the caldera.
COOK INLET VOLCANOES
Seismic activity at Spurr, Augustine, Redoubt and Iliamna
volcanoes remains at normal background levels.
The Alaska Volcano Observatory continues to seismically
monitor Spurr, Redoubt, Iliamna, and Augustine volcanoes.
We maintain a computerized alarm system that is capable of
notifying AVO seismologists during non-business hours
should unusual seismic activity occur.