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Table 2 Parameters used in dynamic rupture simulations

From: 3-D dynamic rupture simulations of the 2016 Kumamoto, Japan, earthquake

Property Value
Strike of the maximum principal stress, \(\sigma_{1}\) N68.83°Ea
Dip of the maximum principal stress, \(\sigma_{1}\) 3.69°a
Strike of the intermediate principal stress, \(\sigma_{2}\) N232.98°Ea
Dip of the intermediate principal stress, \(\sigma_{2}\) 86.17°a
Strike of the minimum principal stress, \(\sigma_{3}\) N338.77° Ea
Dip of the minimum principal stress, \(\sigma_{3}\) 1.04°a
Stress ratio, \(R = \frac{{\sigma_{1} - \sigma_{2} }}{{\sigma_{1} - \sigma_{3} }}\) 0.19a
P-wave velocity 5912.5 m/sb
S-wave velocity 3413.6 m/sb
Rock density 2700 kg/m3
  1. aThe regional stress field was estimated by Yoshida et al. (2016)
  2. bAverages of the velocities at depths from 0 to 20 km obtained by Saiga et al. (2010)
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