Topics of this game:
- Point of earth's surface directly above the focus
- Seismic waves radiate out from a point of sudden energy release
- Occurs between 70 and 700km below earth's surface
- Occurs in the upper 70m of earth's crust
- Smaller earthquakes after the main earthquake
- Vibration in earth's crust caused by sudden release of stored energy in rocks along fault lines
- Used to measure the magnitude of an earthquake
- Energy released during an earthquake
