The computation of the representative ground motions, to be used as input for the dynamic analyses of a struc-ture at a particular site, can be approached by several methods. The choice of the approach depends on two factors: the da-ta available and the type of problem to be solved. This paper reports the experience of the authors in approaching a specificcase study: the Southern Memnon Colossus, located in Luxor, Egypt. The results are of interest when the hazard analysisestimation in developing countries and the safeguard of cultural heritage are concerned. Monuments have to be treated asimportant structures, due to their historical and economical value. Hence, standard procedures of probabilistic seismic haz-ard analysis for the seismic classification of common buildings have to be disregarded. On the other hand, the consequencesof the collapse of a monument are not comparable to those related to structures such as nuclear power plants and large dams,for which the deterministic seismic hazard analysis provides a straightforward framework for evaluation of the worst caseone, is adopted. Its stochastic component can capture significant characteristics of earthquakes, primarily the frequencycontents which depend on the magnitude (often referred to as the earthquake scaling law).
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