Peralta Community College District

Physical Geography
Rita D. Haberlin, Instructor

Volcanoes Learning Module

USGS Photo Mount Hood, Oregon an Active Composite Volcano (Stratovolcano)


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Mount Rainier, the most dangerous volcano in the Cascades.  USGS Photo by Lyn Topinka
Cascades Volcano Observatory
This is a good starting point to explore the Cascades. This site has excellent maps and photographs.
 
 
 

USGS Diagram of Volcanoes on the Big Island of Hawaii

 
Hawaiian Volcano Observatory
Thinking of a trip to Hawaii? Check the United States Geological Survey's (USGS) Hawaiian Volcano Observatory site and learn about the volcanoes of Hawaii, including Kilauea and Mauna Loa, the most active volcanoes on the Big Island.
 
 
 

USGS Photo of Mount St. Helens Volcanic Eruption 1980
Mount St.Helens, Past, Present, and Future
This is an online text with the complete illustrated story of Mount St. Helens. Go to the Title Page then click on Contents to learn the story of Mount St. Helens.

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USGS Photo of Towering Ash Column, Mount St. Helens 1980

 

Volcano and Hydrologic Hazards
This is a comprehensive discussion of the hazards presented by volcanoes.



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This Geography Site Is Maintained By Patricia A. Kulda  Last Update August 10, 2010