Figure 2

(a) Active fault kinematic data for the Büyük Menderes and Gediz grabens showing the orientation of our measured neotectonic faults (base map is the Active Fault Map of Turkey)44,46, where the lines are parallel to the geographic direction of measured fault planes. Dots show the orientation of fault-slip lineations (slickenlines) indicating the movement direction of the faults, on the fault planes. Both lines and dots are plotted on a 3-D spherical projection. These plots of fault kinematic data show the extension direction (red arrows) around the whole Menderes graben system (b) 3D digital elevation model (DEM) from the area outlined in Fig. 1 (dashed white box) from 2 different view directions. Note the transparent red surfaces are our interpreted triangular fault facets (Meng et al., in preparation) formed from recent faulting.