Displacement of GNSS permanent stations depending on the distance to the epicentre due to Japan's earthquake on 11 March 2011

摘要

One of the effects of earthquakes is the permanent displacement of the areas near the epicentre. Global navigation satellite system (GNSS) technologies and permanent station networks have created a tool and an essential terrestrial reference frame for the study of those displacements. This paper aims to use GNSS techniques to place and to geographically quantify the seismic displacements arising over time as a result of the Tohoku's earthquake on 11 March 2011. International GNSS Service data have been used to compensate the coordinates of permanent stations, and then using these coordinates, equation calculations were made indicating that displacement decreases as the distance to the epicentre increases.