Historical seismic catalogue updates and site effects considerations for southern Piedmont (Northwest Italy)

In Northwest Italy, the definition of seismic districts is a debated topic, with relatively scarce literature to pursue goal assessing relative potential. particular, southern Piedmont, despite being part lowest categories in Italian zonation map, has been affected by four relevant earthquakes between 5.5 and 6.5 Mw last six centuries.Starting from Historical Macroseismic Archive catalogue, consultation ten historical archives (in parishes, municipalities, administrations Alessandria, Asti, Cuneo, Turin Provinces) improved seismicity information reported Database, verifying presence unknown Data Point (MDPs). An analysis density instrumental epicentres 35 years provides consistency MDPs density, qualitatively finding spatial correlation them. addition, deepening earthquake- induced landslide issue performed georeferenced environment purpose assess eventual local amplification effects through geostatistical analysis.