Fig. 4: Map of vertical displacements from InSAR data and map of the main geological formations in the region affected by the Teil earthquake. | Communications Earth & Environment

Fig. 4: Map of vertical displacements from InSAR data and map of the main geological formations in the region affected by the Teil earthquake.

From: Surface rupture and shallow fault reactivation during the 2019 Mw 4.9 Le Teil earthquake, France

Fig. 4

a Vertical displacement associated to the 11 November 2019, Mw 4.9 Le Teil earthquake inferred from the unwrapped InSAR interferogram (ascending track) draped over a satellite image of the area; maximum gradient on this map allows tracing the surface rupture; the epicenter of the event is represented by its focal mechanism; thin black lines correspond to extracted profiles across the rupture to determine the vertical displacement and the width of the deformation zone. b Simplified geological map (modified from BRGM) of the Le Teil region highlighting the sharp correspondence between the co-seismic rupture trace inferred from InSAR (in red) and the La Rouvière Fault in black. PCF (CF) Pontet-de-Couloubre Fault (Cevennes Fault), LRF La Rouvière Fault, BRRF Bayne-Roche-Renard Fault, BSAF (MF) Bayne-Saint-Alban Fault (Marsanne Fault), BCS Bayne-Couijanet Syncline.

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