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Where Earthquakes Occur
What an Earthquake Is
in How an Earthquake Is Located and Identified
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Aleutian Islands amplitude Banda Sea basalt blast cause chapter clock Coast and Geodetic compression wave compressional wave concrete crust curve deep-focus quakes depth of focus diffracted direct shear wave distance distant quake dome drum earth particles earth's core earthquake waves elastic epicenter feet felt force Fordham Fordham University fracture G.S. Station Galitzin Geodetic Survey geological geophysics ground heat hence Hindu Kush horizontal hydrogen instruments interest Japan Japanese quake Jesuit Jesuit Station light spot liquid core magnetic melting metal miles minutes motion mountain building observatory observed occluded hydrogen ocean palladium paper path pendulum period piers push quake occurred quiver record reflected shear wave refraction salt dome seconds later seismic seismograph seismology shadow zone shear wave shock SKS wave solid sound wave surface waves tion Tokyo train University University of Strasbourg vault vertical vibrations volume wave arrived wave reflected wave traveling wire