Fig. 2
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40623-017-0685-4/MediaObjects/40623_2017_685_Fig2_HTML.gif)
Acceleration waveforms, Fourier spectra, and spectral ratios of the mb4.9 earthquake for the transverse component. The epicenter of the earthquake is about 80 km NE of Kathmandu. The record of this earthquake was used to adjust the initial 1-D velocity model. A significant amplification in the low-frequency region is clearly evident