Comment by geuis

Just to put the numbers in slightly easier to imagine numbers: imagine ocean waves about 13000 feet or 4 kilometers high.

No, I can't really imagine it either.

In San Francisco, the tallest building is the Salesforce Tower at 1070ft. The biggest wave would be about 13 times taller than that.

I totally have trouble visualizing it, other than just looking up and up and up.