While several plots of the aggregate age distribution suggest that rm age is expo-finentially distributed, we find some departures from the exponential benchmark. At thelower tail, we find that very young establishments are more numerous than expected,but they face high exit hazards. At the...

We study statistical properties of spatial distances between successive earthquakes, the so-called hypocenter intervals, produced by a two-dimensional (2D) Burridge–Knopoff model involving stick-slip behavior. It is found that cumulative distributions of hypocenter intervals can be described...