Across
- 4. volcanoes, steep sided mountains with layers of lava and tephra
- 9. safe, a building that's able to withstand the vibrations caused by earthquakes
- 10. sudden release of energy that causes rocks to break and vibrations in the ground
- 11. volcano, build up of basaltic layers forms a board volcano with gently sloping sides
- 12. the surface break along which a rock moves
Down
- 1. waves, earthquake waves
- 2. cone shaped mountains that spew lava
- 3. cone volcano, small cone volcano less than 300 m high
- 5. height of the lines traced on paper is a measure of the energy released by the earthquake
- 6. the point on earths surface located directly above the earthquake focus
- 7. seismic sea waves
- 8. instrument used to obtain records of seismic waves
- 13. liquid magma