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Table 1 One-dimensional seismic velocity and attenuation structure

From: The 2016 Kumamoto–Oita earthquake sequence: aftershock seismicity gap and dynamic triggering in volcanic areas

Depth (km) V p (km/s) V s (km/s) Q p Q s
0–1 3.80 2.00 200 200
1–5 5.70 3.20 300 300
5–10 5.85 3.45 300 300
10–20 6.20 3.65 300 300
20–30 6.60 3.80 300 300
30–40 7.20 4.10 400 400
40– 7.80 4.55 500 500
  1. V p and V s denote velocities of P- and S-waves, respectively. Q p and Q s are quality factors for P- and S-waves, respectively