The results obtained from these indices were combined to yield an index of relative active tectonics (IRAT) using GIS. The average of the seven measured geomorphic indices was used to evaluate the distribution of relative tectonic activity in the study area. We defined four classes to define the degree of relative tectonic activity: class 1__very high (1.0聽鈮ぢ營RAT聽<聽1.3); class 2__high (1.3聽鈮ヂ營RAT聽<聽1.5); class 3鈥攎oderate (1.5聽鈮ヂ營RAT聽<聽1.8); and class 4鈥攍ow (1.8聽鈮ヂ營RAT). In view of the results, we conclude that this combined approach allows the identification of the highly deformed areas related to active tectonics. Landsat imagery and field observations also evidence the presence of active tectonics based on the deflected streams, deformed landforms, active mountain fronts and triangular facets. The indicative values of IRAT are consistent with the areas of known relative uplift rates, landforms and geology.