Hydrodynamic Pressure due to Sequakes in Deep Ocean

摘要

Behavior of seaquakes in deep ocean is investigated. A three-dimensional seaquake potential function is utilized for evaluating the hydrodynamic pressure. Earthquake rupture (source) area is discretized into a number of small source areas. The result shows that the hydrodynamic pressure is not significant outside the source patch if the earthquake wave source area is considered localized. An improved model of the source is suggested from the consideration of earthquake fault theory. The proposed source model establishes that seaquakes travel a great distance before dying out. Numerical studies examine the distribution of hydrodynamic pressure for a parametric variation of the source area strength and the location of the point of observation.