Document: Diagram of seismic wave movement
There are two types of waves that can be used to study the Earth's interior:
- P-waves are Primary or Compressional Waves. Faster waves that have speeds of 5 km/s at the top of the crust, 8 km/s at the top of the mantle, and 14 km/s at the bottom of the mantle. They can travel through liquids and so can pass through Earth's liquid outer core.
- S-waves are Shear or Transverse waves. Slower than P-waves, they cannot travel through liquids and do not pass through the Earth's core.
- File type:
- File size:
- 25 kB
- © Australian Museum