Surface ruptures and off-fault deformation of the October 2016 central Italy earthquakes from DInSAR data.

ABSTRACT: Large magnitude earthquakes produce complex surface deformations, which are typically mapped by field geologists within the months following the mainshock. We present detailed maps of the surface deformation pattern produced by the M. Vettore Fault System during the October 2016 earthquakes in central Italy, derived from ALOS-2 SAR data, via DInSAR technique. On these maps, we trace a set of cross-sections to analyse the coseismic vertical displacement, essential to identify both surface fault ruptures and off-fault deformations. At a local scale, we identify a large number of surface ruptures, in agreement with those observed in the field. At a larger scale, the inferred coseismic deformation shows a typical long-wavelength convex curvature of the subsiding block, not directly recognizabl

SUBMITTER: Carboni F 

PROVIDER: S-EPMC8873333 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature