High resolution morphometric analysis of the Cordone del Vettore normal fault scarp (2016 central Italy seismic sequence): Insights into age, earthquake recurrence and throw rates

High‐Resolution Seismic Profiling in the Hanging Wall of the Southern Fault Section Ruptured During the 2016 Mw 6.5 Central Italy Earthquake

“…In the eastern part of the transect, the Cordone del Vettore fault and its synthetic splay DF produce longterm throw >400 m affecting the Mesozoic substratum (Figure 1c; e.g., Brozzetti et al, 2019). The short-term throw since the Last Glacial Maximum is > 20 m, implying Late Pleistocene throw-rates of ∼0.8-1.0 mm/yr (e.g., Galli et al, 2019;Pucci et al, 2021;Puliti et al, 2020).…”

“…The short-term throw since the Last Glacial Maximum is > 20 m, implying Late Pleistocene throw-rates of ~0.8-1.0 mm/yr (e.g. Galli et al, 2019;Pucci et al, 2021;Puliti et al, 2020).…”

“…and bounding the Castelluccio basin to the east. The Cordone del Vettore fault displays a >20 m-high bedrock fault scarp, interpreted as the result of several surface-faulting earthquakes (e.g., Brozzetti et al, 2019;Pizzi et al, 2017;Pucci et al, 2021;Puliti et al, 2020) subsequent to the Last Glacial Maximum (set to 28-26 kyr cal BP by Giraudi, 2015). Fault F1 forms a >1,100 m-high tectonic range front interpreted as expression of long-term displacement; based on the offset of Mesozoic stratigraphic markers, this fault is supposed to have a maximum throw of ∼1,200-1,400 m (e.g., Brozzetti et al, 2019;Calamita, Pizzi & Roscioni, 1992;Porreca et al, 2020;Villani et al, 2019;Figure 1c).…”