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Table 2 Source parameters of the EGF1 event (foreshock) and the EGF2 event (aftershock)

From: Applicability of source scaling relations for crustal earthquakes to estimation of the ground motions of the 2016 Kumamoto earthquake

  EGF1 EGF2
Origin time (JST)a 2016/04/14, 23:43 2016/04/16, 09:48
Depth (km)a 14.2 15.9
Seismic moment (N m)b 2.71 × 1016 6.27 × 1016
M bw 4.9 5.2
Strike, dip, rake (deg.)b 279, 67, −22 230, 38, −112
V s (km/s)c 3.4 3.4
Corner frequency (Hz) 1.20 0.73
Fault length (km) 1.86 3.01
Stress parameter (MPa) 10.3 5.4
  1. aJMA, b F-net, c J-SHISV2: Fujiwara et al. (2012)