The present invention relates to a method for separating information associated with diffraction events from specular information present in the seismic data, the method comprising the steps of: obtaining an input data, wherein the input data is a pre-stacked seismic data; building velocity guides, which comprises providing a table containing velocity information for time samples for different CDPs (Common-Depth Points) indices; estimating DSR (Double Square Root) kinematic parameters, which comprises estimating kinematic parameters associated with the DSR traveltime for each sample of the input data considering an estimation aperture, which comprises the region in which the DSR traveltime adjustment to the input data will be evaluated; DSR stacking of each input data sample considering a stacking aperture, which comprises the region in which the input data amplitudes will be stacked over the DSR traveltime; and DSR spreading each sample of the pre-stacked data, comprising defining a aperture, wherein the aperture comprises the region in which the amplitudes of the DSR stacked data, obtained in the DSR stacking step over the DSR traveltime, are distributed.