Peru is one of the countries most exposed to catastrophic events worldwide such as: floods, debris flow, tsunamis, earthquakes. Particularly, earthquakes are generated by the interaction of the Nazca and South American plates known as the subduction process and shallow faults. Likewise, another major problem that Peru is going through is informality in construction, which, added to a large earthquake, could bring with it great economic losses and human lives. Therefore, these problems have motivated the development of this research, which aims to evaluate the seismic risk of buildings in the district of Ayacucho - Peru. In this sense, the probabilistic seismic threat is evaluated using the R-CRISIS program, accompanied by geophysical studies such as MASW (Multichannel Analysis of Surface Waves) that allow the soil to be characterized based on shear wave velocities. Furthermore, the seism...