Earthquake or Strong Winds
The highest waves in the ocean are usually caused by a storm or earthquake. An earthquake at sea can cause mass destruction if the waves crash into land.
Ocean waves are made of matter
No Chance stop the waves in the ocean, don't think it.
A 100-kilometer-per-hour wind blowing for 10 hours across a 1000-kilometer-wide area of ocean.
No. Why would they be?
There are a lot of answers to that. Things fall in the water, boats, sealife, the wind, underwater volcanic activity, earthquakes. But I would think the moon would be the biggest cause, since its gravity makes the tides pull the ocean.
Earthquakes create seismic waves, which are vibrations that travel through the Earth. There are two main types of seismic waves: body waves, which travel through the interior of the Earth, and surface waves, which travel along the Earth's surface. These waves are responsible for the shaking and damage associated with earthquakes.
Do you mean as in waves in the ocean? If so, that would be "olas."
waves
They would likely have much less of an impact than real ocean waves do. As it is, the only compressional waves that can move through water are sound waves, as water is, of the most part, incompressible, as are most liquids and solids.
sonar
water&waves.