Fig. 5

Relations of the magnitudes of the aftershock and the delay time. a Largest aftershocks that occurred within 1 month after each mainshock. b Earliest M ≥ 5 aftershocks. c Earliest M ≥ 4 aftershocks. d Earliest aftershocks of all magnitudes. e Epicentral distances between the mainshock and the earliest aftershock versus the delay times