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Types of Earthquake Waves

Longitudinal Wave *s
Longitudinal Wave *s

Mechanical Waves are waves which propagate through a material medium (solid, liquid, or gas) at a wave speed which depends on the elastic and inertial properties of that medium. There are two basic types of wave motion for mechanical waves: longitudinal waves and transverse waves.

source: acs.psu.edu
Surface Wave *s
Surface Wave *s

surface wave. A surface wave is a seismic seismic wave that is trapped near the surface of the earth.

Transverse Wave *s
Transverse Wave *s

There are two basic types of wave motion for mechanical waves: longitudinal waves and transverse waves. The animations below demonstrate both types of wave and illustrate the difference between the motion of the wave and the motion of the particles in the medium through which the wave is travelling.

source: acs.psu.edu