There is strong evidence that Aitape coast was hit by Tsunami of a height of at least 32m. 1,What is the amplitude of such a wave?

The amplitude of a tsunami wave is typically measured from the midpoint between the peak and trough of the wave to the peak of the wave. In this case, with a tsunami wave height of at least 32m, the amplitude would be approximately half of that height, so around 16m.