2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/98720In this work the distribution of inter-occurrence times between earthquakes in aftershock sequences is analyzed and a model based on a non-homogeneous Poisson (NHP) process is proposed to quantify the observed scaling. In this model the generalized Omori's law for the decay of aftershocks is used as a time-dependent rate in the NHP process. The analytically derived distribution of inter-occurrence times is applied to several major aftershock sequences in California to confirm the validity of the proposed hypothesis.4 pages, 3 figuresGeophysicsStatistical MechanicsData Analysis, Statistics and Probabilitytext