<Table> <Tr> <Td> </Td> <Td> This article includes a list of references, but its sources remain unclear because it has insufficient inline citations . Please help to improve this article by introducing more precise citations . (January 2009) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article includes a list of references, but its sources remain unclear because it has insufficient inline citations . Please help to improve this article by introducing more precise citations . (January 2009) (Learn how and when to remove this template message) </Td> </Tr> <P> In elastodynamics, Love waves, named after Augustus Edward Hough Love, are horizontally polarized surface waves . The Love wave is a result of the interference of many shear waves (S--waves) guided by an elastic layer, which is welded to an elastic half space on one side while bordering a vacuum on the other side . In seismology, Love waves (also known as Q waves (Quer: German for lateral)) are surface seismic waves that cause horizontal shifting of the Earth during an earthquake . Augustus Edward Hough Love predicted the existence of Love waves mathematically in 1911 . They form a distinct class, different from other types of seismic waves, such as P - waves and S - waves (both body waves), or Rayleigh waves (another type of surface wave). Love waves travel with a lower velocity than P - or S - waves, but faster than Rayleigh waves . These waves are observed only when there is a low velocity layer overlying a high velocity layer / sub--layers . </P> <P> The particle motion of a Love wave forms a horizontal line perpendicular to the direction of propagation (i.e. are transverse waves). Moving deeper into the material, motion can decrease to a "node" and then alternately increase and decrease as one examines deeper layers of particles . The amplitude, or maximum particle motion, often decreases rapidly with depth . </P>

What is the difference between rayleigh and love waves
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