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Volcanic presence, Mt. Fuji. -- Mt. Fuji is the largest, best known, and perhaps most beautiful of Japan's volcanoes, and like many of the others it is potentially dangerous. Primary hazards include explosive eruptions, pyroclastic flows of ash and burning gas capable of traveling at speeds up to seventy miles an hour, and lava flows. In the long run, however, secondary effects of eruptions may be even more devastating. Among these are crop and structural damage from the fall of volcanic ash, mudflows and landslides in thick piles of unstable ash, flooding caused by the damming of rivers by volcanic debris and lava flows, and even climatic change resulting from suspension of ash and dust in the atmosphere.
 
Editorial assistant: Joseph Augustin. Collection Librarian: Amy Bryant. -- Please send any questions, comments, or content corrections to Michael Thiedeman, Professor of Art, Earlham College, Richmond, IN 47374 USA. email address: thiedmi@earlham.edu -- With reference to this set of images dealing with the geology of Japan, you may wish to contact Dr. Charles Martin, Professor Emeritus, Department of Geology, Earlham College, email: martich@earlham.edu