Seismotectonic Deformations Related to the 2011 Tohoku Earthquake at Different Stages of the Seismic Cycle, Based on Satellite Geodetic Observations

Abstract

The data of multiannual satellite geodetic observations before, during, and after the 2011 Tohoku earthquake are interpreted on the basis of the keyboard model of the structure of the subduction region. The inhomogeneities in the field of displacement rates of the Earth’s surface are revealed in the directions of both to the inside of Japan Islands and along the oceanic trenches. It is shown that all types of recorded displacements can be explained in terms of the model considered in this work.