What Really Caused the ROKS Cheonan Warship Sinking?

Table 2

The amplitude data of the peaks in the frequency spectrum reported in Figure of [3]. -column is for meter unit scale, -column is for nm unit, -column is for the relative amplitudes divided by 8.5 Hz amplitude, and -column is for the relative amplitudes of pressure converted from -column displacement amplitudes.

(Hz)	(m)	(nm)			Cal.^*
8.5	10^−8.22	6.0	1.0	1.0^+	1.0
17.7	10^−8.88	1.3	0.22	0.45	0.23
26.0	10^−9.40	0.4	0.07	0.20	0.04
34.6	10^−10.17	0.07	0.01	0.05	0.016

5.2 Pa. ^*Cal.: the estimated peak ratios from Figure 5, which are comparable with those in -column.