Final answer:
Love waves, known as L-waves, are surface seismic waves that cause horizontal shearing and move along Earth's surface following the faster P- and S-waves during an earthquake.
Step-by-step explanation:
L-waves, or Love waves, are a type of seismic wave that falls under the category of surface seismic waves. This means that they travel along the Earth's surface rather than through its internal layers. In comparison to P-waves (primary seismic waves) and S-waves (secondary seismic waves), which are body waves and traverse the interior of the Earth, Love waves are slower and cause horizontal shearing of the ground. They are similar to surface waves on water and occur after the initial P- and S-waves of an earthquake.