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        Summary 
        
         
          
           | DescriptionEq-gen3.svg | 
           
             English: Vertical Slice Through a Subduction Zone  B. During an Earthquake 
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           | Date | 
           1999 | 
          
          
           | Source | 
            U.S. Geological Survey, Circular 1187 ( http://pubs.usgs.gov/circ/c1187/illustrations/BlockDigrm_1.ai) | 
          
          
           | Author | 
           Brian F. Atwater, Marco Cisternas V., Joanne Bourgeois, Walter C. Dudley, James W. Hendley II, and Peter H.Stauffer | 
          
         
         
        Licensing 
        
         
          | Public domainPublic domainfalsefalse | 
         
        
        
         
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          This image is in the  public domain because it contains materials that originally came from the  United States Geological Survey, an agency of the  United States Department of the Interior. For more information, see  the official USGS copyright policy. 
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