Seismic site amplification induced by topographic irregularity: Results of a numerical analysis on 2D synthetic models

In regard to seismic amplification vs. the frequency we can affirm that seismic amplification reaches its maxima in the band 4-16 Hz and with slope angle value computed at the highest degree. It is also clear that a nonlinear seismic amplification response in the crest and valley zone while SA would seem to have a linear response in other zones. We propose an empirical method to estimate the SA in the regular slope far from the crest and valley zone.