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Pilots and observers in Adak reported continued low-level emission of steam and possibly minor ash from Kanaga. Photographs provided by the Navy show two steam vents near the summit.
Reports last weekend of possible eruptive activity at Makushin Volcano reflected a combination of intense lightning near the volcano and a strong sulfur odor detected in Dutch Harbor, 25 km to the east. The lightning was apparently associated with the passing of a strong storm front, and winds were blowing directly toward Dutch Harbor. Makushin has several active fumaroles and sulfur emission is common. Makushin is located on Unalaska Island about 250 km southwest of Cold Bay.
COOK INLET VOLCANOES
Seismicity at Spurr, Augustine, Redoubt and Iliamna volcanoes remains at normal levels.
The Alaska Volcano Observatory continues to monitor Spurr,
Augustine, Redoubt and Iliamna closely. We maintain a
computerized alarm system that is capable of notifying AVO
seismologists during nonbusiness hours should unusual
seismic activity occur.