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How often do Alaskan volcanoes erupt?

Alaskan volcanoes have produced one or two eruptions per year since 1900. At least 20 catastrophic caldera-forming eruptions have occurred in the past 10,000 years; the awesome eruption of 1912 at Novarupta in the Katmai National Monument is the most recent. Scientists are particularly concerned about the volcanoes whose eruptions can affect the Cook Inlet region, where 60 percent of Alaska's population lives. 


Brantley, S.R., 1994, Volcanoes of the United StatesU.S. Geological Survey General Interest Publication, 44 p.

Tags: Geothermal Resources, Earthquakes, Tectonics, Monitoring, Volcanoes, Lava, Seismicity, Ring of Fire