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Land use, urbanization, high population density, seismic risk, Tokyo. -- Because of its location above convergent crustal plate boundaries, Japan records about 5,000 earthquakes a year. On average, one to three earthquakes can be felt at any locality each month, and the historical frequency of major earthquake disasters in Japan is about one every ten years. Hazards associated with earthquakes include ground shaking, fire, landslides, and tsunami along the coastline. The great 1923 Tokyo earthquake left 143,000 people dead or missing, 103,000 injured, and about 250,000 homes damaged or destroyed. With a high population density, high rise buildings, increased population and commuters, the toll from the next Tokyo earthquake may be even greater.
 
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