Results of simulations for the real model setup (see Table 2 and Fig. 3) with varying σ. The top row of plots correspond to σ = 5% and the bottom row to σ =10%. All plots are given for a correlation length a= 2 km. Left-hand panels: L/R ratios as a function of distance normalized by the SMFP (see Table 2). The black line shows the mean over the 14 angular directions (see Fig. 2) and the yellow area shows one standard deviation; centre panels: dispersion curve for the rotations around the transverse axis Φ_T (perpendicular to the source–receiver direction). The black dotted line shows the theoretical Rayleigh wave fundamental mode; right-hand panels: dispersion curve for the rotation around the vertical axis Φ_V. The dotted line indicates the fundamental Love wave mode. The colour scale corresponds to rotation rate. Each Φ_V dispersion curve is normalized by the maximum of the corresponding Φ_T dispersion curve.