Fig. 3: Results of the geodetic modeling.
From: Simultaneous rift-scale inflation of a deep crustal sill network in Afar, East Africa
InSAR observation (a), model (b), and residual (c) for descending orbit 006. The ascending orbit is shown in Supplementary Fig. 12. Negative LOS velocities (vel.) values (range decrease) in the LOS data represent ground motions toward the satellite. d comparison between the InSAR model, crustal thickness, and Vp/Vs (when available), as reported by refs. 22,29. Black lines are major faults. The blue polygons in b and d are the projections of the four best-fit Okada sources (sills) at the surface. The triangles are the stations used by refs. 22,29, while the blue line is the profile track shown in (e). Topography is from the 1 arc-sec SRTM DEM54. e Cross-section showing the comparison between topography elevation (Elev.), sills location (blue polygons), crustal thickness, and related uncertainties when available (black error bars). The red ellipsoids represent the location of the sills at AG inferred by ref. 33 The red error bars are the mean depths (red dot) and standard deviations (2σ, red bars) obtained from the error calculation of Model 2.
