Análise de agrupamentos aplicada à delimitação de zonas sismogênicas: um caso de estudo para o estado de Minas Gerais

Abstract

The goal of this work was to suggest and evaluate the applicability of a structured methodology, based on statistical clustering techniques (clusters) and geoprocessing of spatial data, for mapping possible seismogenic zones in Minas Gerais. The results correlated with tectonic domains present in the area of interest and with seismogenic zones obtained by other authors, demonstrating that the combination of multivariate statistical techniques (clusters analysis) and geoprocessing is an objective methodology for mapping of seismogenic zones. However, the results also show that this approach still needs to be revised based on the opinion of seismologists specialized in the subject. It is suggested that, in future work, the incorporation of more parameters of the region of interest be evaluated, such as geological and structural characteristics, so that these new variables can add more differentiation or similarity to the resulting groups, in addition to the use of more grouping methods that can incorporate categorical variables.