Fig. 2

Zones with a high failure probability upon earthquake occurrence (PoF_eo) and corresponding potential failure depths for peak ground accelerations with an exceedance period in 50 years of a 10%, b 2% and c 0.5% (Strupler et al. 2018). Slopes < 1° are here considered stable (to avoid large unstable volumes on the terraces of the escarpment structure), although the model of Strupler et al. (2018) considers such slopes (i.e., > 0.01°–1°) as unstable for strong earthquake accelerations, such as assumed for an EP₅₀ of 0.5%