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Alaska Volcanoes and Volcanics
Miscellaneous Images

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Image, click to enlarge [Image,35K,JPG]
Augustine Island Volcano.
-- USGS Photo by Harry Glicken, 1986
Image, click to enlarge [Image,64K,JPG]
Aerial view, Novarupta Dome, Katmai Vicinity, Alaska.
-- USGS Photo by Gene Iwatsubo, July 29, 1987
Image, click to enlarge [Image,72K,JPG]
Fumarole sampling, Mount Mageik
-- USGS Photo by Bea Ritchie, July 1995
Image, click to enlarge [Image,488K,GIF]
Acoustic Flow Monitor (AFM) site in the Drift River valley, near Redoubt Volcano, Alaska. The key component of the AFM system is a seismometer, buried in the ground nearby, that responds to the high-frequency (10-300 Hz) vibrations that characterize lahars. Inspired by the Nevado del Ruiz tragedy in 1985, the AFM system was developed and tested at Mount Redoubt, and then successfully used in the Philippines to monitor lahars at Mount Pinatubo.
-- USGS Photo by S.R. Brantley.

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03/21/07, Lyn Topinka