Seismic Acceleration in the Near Area of the Akkuyu NPP Site (Turkey) Caused by Strong Regional Earthquakes

Abstract

Due to the lack of experimental data, it is difficult to obtain reliable magnitude and distance dependences of peak ground accelerations for the specific area of the Akkuyu NPP. This is because the seismic monitoring networks have been rolled out relatively recently. In such conditions, it is necessary to assess the acceptability of using the dependences obtained in other regions or based on global data. The paper presents the results of studying the attenuation of seismic waves from earthquakes in Turkey with magnitudes of M_S = 2.5–7.0 at distances up to 1000 km from the Akkuyu NPP site. It has been established that the empirical expression obtained by F.F. Aptikaev (2012) based on global data can be used to estimate the seismic effect of earthquakes in seismically active zones in Turkey. It is shown that data from analyzing moderate earthquakes can be extrapolated to the maximum possible magnitudes in order to estimate the maximum seismic effects in the area of the Akkuyu NPP site.