1. A computer-implemented method for improving signal-to-noise in a graphical Amplitude Versus Angle (AVA) plot of seismic image data to identify geologic features of interest, the method including:obtaining, with a seismic data module, pre-stack seismic data from one or more seismic receivers or a seismic data storage device, the pre-stack seismic data comprising seismic reflection amplitudes obtained from the one or more seismic receivers and offset data between one or more seismic sources and the one or more seismic receivers, the seismic sources and seismic receivers being positioned above a subsurface volume of interest and the offset data including reflection angles for the seismic reflection;

selecting a range of reflection angles for the pre-stack seismic data, the reflection angles being calculated based on the offset data;

migrating the pre-stack seismic data to generate seismic trace amplitudes corresponding to the selected range of reflection angles;

selecting, with a seismic horizon module, a seismic horizon of interest;

flattening seismic trace amplitudes relating to the seismic horizon of interest;

obtaining angle stack seismic cubes representative of the subsurface volume of interest and computed by summing the seismic trace amplitudes over the selected range of reflection angles;

generating, with a graphics generator, a graphical map of the angle stack seismic cubes;

displaying, on a user interface, the graphical map;

identifying, with the user interface, one or more areas of interest on the angle stack seismic cubes, the areas of interest being defined by a shape, a size, and/or a location on the graphical map;

computing statistical data ranges for seismic trace amplitudes inside the one or more areas of interest as a function of axes of the reflection angles, wherein the statistical data ranges are represented by P50 probabilistic value, and an upper and lower probabilistic value for seismic amplitudes, the upper and lower probabilistic value being similarly offset from the P50 value;

displaying, on the user interface, one or more AVA plots of the statistical data ranges for seismic trace amplitudes as a function of the angle axes of the reflection angles;

graphically distinguishing, in the one or more AVA plots, geologic features of the subsurface of the one or more areas of interest based on the statistical data ranges for seismic trace amplitudes to conduct fluid estimation, lithology discrimination and/or analysis, structural conformance, well-planning and/or reservoir management, wherein different seismic trace amplitudes are represented on the AVA plots based on corresponding shading, coloring, or contouring;

determining a quality of the AVA plots by evaluating signal-to-noise; and

increasing the quality of the AVA plots by:

obtaining, with a seismic data module, additional pre-stack seismic data corresponding to the subsurface volume of interest and/or modifying the shape, the size, or the location of the areas of interest; and

displaying, on the user interface, one or more revised AVA plots of the revised statistical data ranges for seismic trace amplitudes as a function of the angle axes of the reflection angles.