Seismic Anatomy
Seismic Velocity
Look at the table below to see how variable the velocity can be. There is a wide range of values as the rocks themselves are very variable. Things that affect the velocity at which the seismic wave can travel through a rock may be: degree of compaction, the presence of fluid, the type of fluid.
| Material | Typical seismic velocity (m/s) |
| Air | 330 |
| Water | 1400-1500 |
| Sandstone | 1400-4300 |
| Limestone | 5900-6100 |
| Clay | 1000-2500 |
