Nobuoto Nojima

Professor, Department of Civil Engineering, Gifu University, Gifu, Japan

[ 1 ] - Attenuation of Fourier spectra for 2012 Ahar–Varzaghan earthquakes, Northwestern Iran

In this research, we have used 102 strong motion recordings from 2012 Ahar-Varzaghan earthquakes (Mw=6.5 and Mw=6.3) to study the form of attenuation of shear wave Fourier amplitude spectra of those two events. The analysis is carried out in a broad-band frequency range from 0.1 to 20 Hz. A bilinear shape for geometrical spreading is assumed based on nonparametric regression of the data. The hi...

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