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Earth, Planets and Space
Fig. 21 | Earth, Planets and Space

Fig. 21

From: Unified approach for evaluation of horizontal site amplification factors with special reference to history of studies on the effects of surface geology on seismic motion

Fig. 21

sHSAFs of all the 76 sites with the Vs30 range of 760 < Vs30 < 1000 m/s (gray lines) and their geometrical mean and mean ± one standard deviation (red lines). The average relative amplifications of these rock sites at 1 Hz and 10 Hz are 2.2 and 3.2, respectively

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