Panel a: frequency distribution of duration for all events detected by ALMA (black solid curve) and for those with AIA counterparts, either 304 or 1600 Å, (red solid curve). The dashed black and dashed red lines represent the fitting of those distributions with power-law functions, while the purple and yellow curves indicate their fitting with exponential functions. Panel b: frequency distributions of duration for all events detected at 304 Å (solid blue) and 1600 Å (solid green) and their fittings with power-law functions (dashed blue and dashed green, respectively). Panels c and d: same as (a) and (b), respectively, but for the frequency distribution of maximum area.