The Great Alaska Earthquake of 1964, Volume 5

1964 Alaska earthquake 1964 earthquake Aleutian Trench Algermissen amplitude Anchorage azimuth changes Coast and Geodetic computed continental Cook Inlet cracked crust crustal damage deformation determined dip-slip distance earth Earthquake of 1964 earthquake of March energy release epicenter fault plane feet focal depth focal mechanism Geodetic Survey Glennallen gravity Gulf of Alaska horizontal hypocenters indicated Kenai Peninsula kilometers km/sec Kodiak Island Lake located long-period magnitude main shock March 28 maximum ments microshocks Middleton Island miles Montague Island motion movement National Academy nodal plane observed occurred ocean oscillations P-wave P.W.S. Aftershock period Plafker polarization postearthquake Prince William Sound quake Rayleigh waves recorded region reported rupture seismic seismograph seismograph stations Seismology Seward shown in figure Stauder strain structure subsidence surface waves tectonic tide tion tsunami U.S. Coast U.S. Geological Survey uplift Valdez velocity vertical displacement Washington William Sound Earthquake zone