L waves, also known as long waves, are surface waves created by earthquakes. They are the slowest of all earthquake waves, but usually cause the most intense shaking and damage to property.
L waves are categorized as either Love waves or Rayleigh waves according to their motion. Love waves move side to side across the surface of the earth, while Rayleigh waves have a rotating circular motion.
Waves that occur below the surface of the earth are called body waves. Primary body waves are the fastest waves and are able to pass through solids, liquids and gases. Secondary body waves move more slowly and can only travel through solids.