This article is about an applied research on a natural slope located in the fifth region of the country, where one of the objectives was to compare different methods of calculating slope stability under static and pseudostatic conditions. In the latter case, we considered two major earthquakes that have occurred in Chile, such as the 1985 Valparaiso earthquake and 2010 Maule earthquake, with magnitudes of Mw = 8.0 and Mw = 8.8, respectively. Comparison of the results was carried out by obtaining safety factor of potential failure surfaces, through the use of software GeoSlope considering the worst case and using the models proposed by Fellenius, Bishop and Janbu (method of slices). As a result, it was possible to observe the influence of the earthquake on a finite slope, which depends on the Richter scale earthquake, and the values of the coefficients of seismic acceleration (horizontal and vertical).