Estimation of site response function using Nakamura technique: a case study from Kumaun Himalaya

The aim of this study is accomplished by utilizing the H/V spectral ratio method (Nakamura technique) to investigate site response at fifteen seismic stations. Regarding method, some significant local parameters such as fundamental frequencies (f0) soft sediments, peak amplitudes (A0) corresponding ratios, spectrum amplitude, and rotation were computed over stations in area. A has been done using microtremor data from frequency varies 0.67 11.54 Hz within Resulting analysis, low around KHAT, PNGL, SBLA stations, which indicates possibility thick sedimentary soil cover greater depth. Similarly, amplification these found be range 2–4. Further, contour map prepared with help values obtained curve observe area hazard potential region. Also, results different verified considering SESAME guidelines conditions for reliability. Then, amplitude analysis carried out know characteristics respect azimuth soil.