a Co-seismic slip distribution and width of the deformation zone inferred from InSAR data, along the projection line indicated in Fig. 4a. This graph is based on 14 across fault profiles that were traced at key locations where we observed deformation features in the field. Those profiles allow the estimation of vertical displacement across the rupture (vertical offset), together with the width across which this displacement is accommodated. As shown in b, we distinguish two levels of observation aperture along each profile: the total deformation zone (TD and TDZW) that describes the whole deformation band, and the principal rupture (PRD and PRW) where most of the vertical offset is concentrated with the highest gradient. See Supplementary Notes for more information.