The only explanation I can think of is vibration. If the earth started vibrating in certain frequency patterns, it could cause uniform square waves to appear on the surface of the ocean. Now what could cause the earth to do that? Maybe someone else could answer that question.
I think this is what is called scaler squares. Emanated by satellite. Though they could have scaler networks under water. Might explain the massive ocean die offs that I no longer am able to stomach posting. Between Fukushima and them messing with us.... does not bode well for Gaia and her creatures.
More Here: http://www.aircrap.org/2015/10/26/dutchsinse-haarp-rings-scalar-squares/