“…The 24 August M w 6.1 main shock ruptured two distinct segments of this fault system (Figure 4a), corresponding to the northern part of the~50°SW dipping Mount Gorzano Fault, which was partially activated in its southern portion during the 2009 L'Aquila earthquake [Chiaraluce et al, 2011;Bigi et al, 2013;Cheloni et al, 2014], and to the southern part of the~40°SW-dipping Mount Vettore Fault, respectively. The main shock occurred, with a bilateral rupture, between these two fault segments, possibly merging into a single SW dipping structure at the hypocentral depth [Lavecchia et al, 2016;Tinti et al, 2016;Chiaraluce et al, 2017]. …”