A method is provided for utilizing the human perceptual system by providing a spectrum of event log data for viewing. Event log data is received. Events of the event log data are mapped to an x-axis of a spectrum based on time, where the events of the event log data correspond to a time slot on the x-axis. Categories for the events are mapped to a y-axis of the spectrum, where the y-axis is a frequency axis, and where each of the categories respectively corresponds to a frequency of the multiple frequencies. Strength of events are mapped to a z-axis of the spectrum, where the z-axis is a magnitude axis, and where a magnitude value reflects the significance of the events happened at a particular time slot in a particular category. The magnitude of events (z-axis) of the event log data may be further mapped to a line thickness of the spectrum for the multiple frequencies. The spectrogram of the event log data is presented in a two-dimensional graphical format in time, frequency, and magnitude for observation by a user.