№ 3,
2015
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Microtremor survey and spectral analyses of H/V ratio for Baku city (Azerbaijan)
Institute of Geology and Geophysics of Azerbaijan National Academy of Sciences, AZ1143, Baku, H.Javid av., 119
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In this study, ground response analysis on different 255 sites in Baku city of Azerbaijan was done. The damage distribution is estimated on the basis of local site effects. Aiming to estimate local site effect, analysis of the ratio of horizontal to vertical (H/V) spectra of microtremor records was performed. The records are conducted with the Guralp CMG-5TD accelerometer and, with the Nakamura’s approach, dynamic characteristics of surface ground are estimated. The maps showing the distribution of the amplification and resonance frequency for the grounds of Baku city were produced, which demonstrate variability and heterogeneity of ground characteristics in the city. The results can be used for urban seismic hazard assessment researches in the future.