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Unlike body waves, surface waves (also known as long waves, or simply L waves) move along the surface of the Earth. Surface waves are to blame for most of an earthquake's carnage. They move up and down the surface of the Earth, rocking the foundations of man-made structures. Surface waves are the slowest moving of all waves, which means they arrive the last.
Most waves form when winds blowing across the water's surface transmit their energy to the water. crest. the highest part of a wave. wavelength. the horizontal distance between crests. frequency. the number of waves that pass a point in a certain amount of time.