Abstract
The level-one earthquake ground motion is going to be presented as time histories by the seismic hazard analysis considering source, path and site amplification effects. Site amplification factor is calculated by the spectral inversion of the strong motion record. However, it should be noted that strong motion record is not obtained at all the port areas nationwide. In such cases, site amplification factor applied at port areas is obtained by the modification of that at inland sites. This study aims at discussing the effect of the modification of the site amplification factor on the evaluation of the level-one earthquake ground motion from the viewpoint of the deformation of quay walls.
