Fig. 4: Conceptual model of the seismotectonic and hydrogeological setting in the region of the 2014 Iquique Mw 8.1 earthquake.
From: Megathrust reflectivity reveals the updip limit of the 2014 Iquique earthquake rupture
a Dehydration of weathered clay-bearing basalt (green arrows) and fluid release from intergranular and fracture porosity in layer 2 A (red arrows) results in a fluid rich shallow plate boundary. b Schematic trends in seismic reflectivity (yellow) and earthquake slip (red) with increasing depth along the plate boundary.
