Evaluación de zonas de amenaza por avenidas torrenciales utilizando metodologías cualitativas: Caso de aplicación a la quebrada Do？a María

this paper shows the application of a methodology for evaluation of hazard zones by torrent flow, it was done at do？a maria basin. hazard evaluation was done using geographical information system, and the residual pondered weight method, for the evaluation of different factors as topography, slope, geology and geomorphology, cumulative flow, distance to the rivers and melton index for each ones to the affluent basin. the results obtained allow to identify that the little basin that more hazard presented were la arenala, la tablaza, la limona y la manguala. these results also were verified through field recognitions y comparison with the results of hydraulic modeling for a return period flow of 100 years increased in 40%.