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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.
Surface wave: (in physics) occurs along any boundary of two different substances ; Focus: breakage point of subsurface rock ; Rayleigh waves: have an up-and-down rolling motion like an ocean liner ; Love waves: have a back-and-forth motion like a sidewinder snake ; Learning Outcomes