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Table 1 One-dimensional velocity structure used for the hypocenter determinations.

From: Intensive seismic activity around the Nankai trough revealed by DONET ocean-floor seismic observations

Depth (km)

Thickness (km)

P velocity (km/s)

0

2.64

1.50*

2.64

0.86

2.00

3.50

1.85

3.00

5.35

2.97

4.00

8.32

3.00

5.44

11.32

3.00

6.50

14.32

—

8.16

  1. * Water