Investigation of Amplification Effect Using Ambient Seismic Noise: Adana Basin

Abstract

The applicability of Rayleigh waves retrieved from Ambient Seismic Noise (ASN) to estimate the amplification of the Adana basin is investigated. The amplitudes of Impulse Response Functions (IRFs) obtained from pairs of stations in and around the basin are analysed. In addition, the validity of the IRFs is analysed using an earthquake that occurred near the reference station. The amplitudes of IRFs between station pairs within the basin (H1) are high, as expected from the basin structure, while those following the basin margins are low. In the D1 group, which covers the entire study area, the amplitudes in the northeast are higher than those in the H1 group. The results indicate that amplification can be successfully estimated by using ambient noise data for the region.