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Table 1 Estimated fault parameters and seismic moment of the foreshocks and the main shock

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

Event Center position of fault Length (km) Width (km) Strike (°) Dip (°) Rake (°) Seismic moment (Nm)a
Longitude (°E) Latitude (°N) Depth (km)
Foreshock 1 130.7700 32.7300 10.0 15.8 8.9 212 60.5 − 164a \(1.74 \times 10^{18}\)
Foreshock 2 130.8300 32.7755 9.97 5.1 7.5 45 80.0 − 178a \(1.27 \times 10^{17}\)
Foreshock 3 130.7550 32.7007 7.97 14.1 9.1 200 75.0 − 152a \(1.06 \times 10^{18}\)
Main shock (Hinagu fault) 130.7725 32.7500 10.0 17.0 21.58 205 68.0 (− 165)b \(4.42 \times 10^{19}\)
Main shock (Futagawa fault) 130.9000 32.8700 10.0 20.0 23.1 235 60.0 (− 123)b  
  1. aThe values were derived from the F-net moment tensor solutions
  2. bThese values were calculated from the regional stress field. The slip direction of the main shock in dynamic rupture simulations is the same as the shear stress direction determined from the regional stress field, the static stress change due to the foreshocks, and the dynamic stress change during the rupture propagation
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