GNGTS 2021 - Atti del 39° Convegno Nazionale

GNGTS 2021 S essione 1.1 70 it. The computation of synthetic active domains of the future earthquakes may help to calibrate the seismic hazard assessment where the vertical motion plays a relevant role in enhancing larger horizontal shaking and greater damages. Fig. 3 - Absolute PGA data. Vertical and horizontal PGA versus distance from the epicenter (a-e) or from the depocenter (f-j) of selected Italian earthquakes, comparing the area inside (red dots) and outside (blue dots) the epicentral area. Notice that the highest values coincide with the area depicted by InSAR as the most vertically deformed zone.