Source Mechanism Study of the Alaska Earthquake and Tsunami of 27 March 1964. Part Ⅰ. Water Waves Part Ⅱ. Analysis of Rayleigh Wave

摘要

The geologic history and a short description of the general geomorphology of the area affected by the 27 March 1964 Alaska earthquake are given. The extent of crustal displacement and the limits of the areas of subsidence and uplift as revealed by geologic evidence are discussed, as well as the method by which the tsunami-generating area was determined. The dimensions of this tsunami-generating area, its volume of crustal displacement, and the energy associated with the tsunami are calculated. There follows a short discussion on wave activity within and outside the generating area, and the possible generating mechanisms for the tsunami.