GNGTS 2024 - Atti del 42° Convegno Nazionale

Session 1.1 GNGTS 2024 ● The same hypothesis could be applicable on the Gran Sasso fault that ruptured in 1349, this is the only event in the last millennium. The Paganica fault generated 3 earthquakes that transferred negatve Coulomb stress on the Gran Sasso fault. The nuanced understanding of CST achieved through this research has both concrete and academic implicatons. By illuminatng the interacton between faults in previous seismic episodes, it provides valuable insights into possible future earthquake sequences. Such awareness is essental: by antcipatng seismic sequences, targeted risk mitgaton tactcs can be formulated, thereby protectng local communites from the catastrophic consequences of earthquakes. Table 2 List of historical (Mw≥6) and instrumental (Mw≥5.8) seismic events from 1279 to 2016 caused by CAFS (from CPTI15; Rovida et al., 2022 and ISIDe seismic catalogues). The seismic events selected for simulatons are highlighted in green. Moreover, the complexity of the CAFS, observed in light of past seismic episodes like those in 1997, 2009, and 2016, underscores the intricate nature of stress paterns. These paterns emerge from interactons between seismic events, with stress lobes intertwining in ways that amplify, nullify, or diversify their impacts on nearby faults. It is noteworthy that while historically and currently seismic-actve regions such as Fabriano and Sulmona have remained relatvely quiescent, their potental for future actvity and associated risks should not be overlooked. This research highlights the complex dynamics at play in a high-seismic-actvity region like the CAFS. Through rigorous analyses and innovatve modeling techniques, we ofer insights that can guide future investgatons and pragmatc strategies for seismic risk mitgaton. This study stands as a testament to the profound ability of CST to infuence the seismic narratve of a region and emphasizes the need for contnued research in this feld.