A continuous GPS network could easily detect this fitful acceleration, well before ground-shaking earthquakes began to occur and, with luck, in plenty of time for a useful tsunami warning.

• 持续监测的GPS接收网络，可以早在撼天动地之前，轻易侦测到这种不规则的加速作用，更幸运的话，还有足够的时间发出海啸警报。