Distributions of angular separation in latitude (left), longitude (middle), and total angle (right) in degrees against waiting time in hours for flares observed by SDO/AIA between June 11, 2010, and January 26, 2019. In panels a–c, all flares from both hemispheres are used while in panels d–f, we first separated the flares from the northern and southern hemispheres and combine the distributions. The histograms have been normalized to show the probability densities.