Based on the above preparation, we have conducted a numerical simulation of the VLCC׳s motions and mooring loads for two hours after the earthquake. The numerical simulation results are shown in the duration of 600 s from 15:46 (3600 s) to 15:56 (4200 s) because we do not consider the effect of the earthquake force until about 15 min from the beginning of the earthquake, and the large ship motions began about one hour after the earthquake as shown in