Why are there no actual videos of any hundreds of feet high tsunamis?

Question

Any tsunami video I look at barely looks like a 20 feet wave hitting shore. But wikipedia tells me there have been dozens of 100+ feet tsunamis even in the last 10 years.

In: 1276

Answer 1

Because the waves don’t reach hundreds of feet when they approach the shore. The increased drag from the bottom of the ocean slows down the wave, while the top of the wave doesn’t experience that drag. This mismatch in speed causes the wave to collapse as it approaches the shore.