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Alaska Volcanoes Update
Friday, May 2, 1997, 10:30 AM ADT (1830 UTC)
Okmok Volcano: 53.4°N, 168.17°W; 760 m (2,500 ft)
Eruptive activity at Okmok Volcano is continuing. Hot lava flows within
the caldera as well as thin, lowlevel, ash plumes have been
observed via satellite during the last week. The current eruptive
phase began February 13. Based on past eruptive history, lava
flows and ash emission may continue to occur without additional
warning for a period of weeks to months. Okmok is not
monitored seismically and is not assigned a color code.
Okmok is on the eastern end of Umnak Island, 75 miles southwest of
Dutch Harbor. The nearest settlements are Nikolski (45 miles
W) and former Fort Glenn military base (10 miles E).
Other Volcanoes: (repeated in subsequent updates)
Seismic activity is monitored in real time at the following volcanoes.
Some of the volcanoes listed below may have anomalous
seismicity, as noted, but are not considered to be at a dangerous
level of unrest.
Pavlof, Iliamna, Spurr, Redoubt, Augustine, Griggs, Katmai,
Novarupta, Trident, Mageik, Martin, Dutton, Akutan, and
Makushin volcanoes are all at or near normal levels of background