Alaska Volcanoes

The Alaska Peninsula and the Aleutian Islands have about 80 major volcanic centers that consist of one or more volcanoes.  Brantley, S.R., 1994, Volcanoes of the United States: U.S. Geological Survey General Interest Publication, 44 p. 
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...
The largest eruption in the world this century occurred in 1912 at Novarupta on the Alaska Peninsula. An estimated 15 cubic kilometers of magma was explosively erupted during 60 hours beginning on June 6 -- (which is equivalent to 230 years of eruption...
USGS Volcano Observatory for information on Alaska Volcanoes.You can learn more about the AVO Webicorders at this USGS webpage.If you'd like to follow Alaska volcano activity, sign up for our RSS feed to receive formal information products - or our...