A soft linkage between major seismogenic fault systems in the central-southern Apennines (Italy): evidence from low-magnitude seismicity

摘要: Abstract We investigate the transfer zone and linkage between divergent extensional seismogenic fault systems on border amid central southern Apennines (central Italy). These regional NW–SE striking sets include large sources that caused major historical earthquakes (M w  ≤ 7). The faults in northern part of study area dip to southwest; those northeast. SW-dipping system (Abruzzi Apennines) terminates with Aremogna–Cinque Miglia source; NE-dipping (southern Boiano Basin source. To test whether model applies central-southern border, we analyzed relocated seismicity occurred from 2007 2011 sources, where expect zone. Seismicity is made independent events (MD  spatial distribution seismicity, geometry kinematics active faulting region, results previous geophysical studies allow us contend existence a these normal systems. Our data also recognize activity such along Ortona–Roccamonfina Line. infer reverse polarity two could result passage diverse tectonic units composing Apennines.