![[The Tech]](../images/ht.gif) ![[Green]](../images/green.gif) ![[Overview]](../images/overview.gif) ![[Help]](../images/help.gif)
The Slinky and The Rope
Earthquakes generate several kinds of seismic waves including P, for "Primary" and S, for "Secondary" waves.
P Waves
![[Time]](images/arrow.gif)

The P waves move in a compressional motion similar to the motion of a slinky, while the S waves move in a shear motion perpendicular to the direction the wave is travelling.
S Waves
![[Time]](images/arrow.gif)
|