Across
- 2. the buckling of rocks caused by huge earth forces.
- 4. downwards bending folds in rock layers that forms a U-shape.
- 5. it's around the earth crust.
- 8. instruments that record earthquakes and measured their magnitude.
- 10. the ground shakes.
- 11. the relatively thin, solid outer skin of the earth.
- 13. used to measure earthquakes.
- 14. second wave, transverse, vibrations.
Down
- 1. tall with a hollow inside and can erupted.
- 3. a scale from 1 to 10, used to measure the magnitude or strength of an earthquake.
- 6. last wave, most damaged.
- 7. upwards bending folds in rock layers.
- 9. these moves and can cause an earthquake.
- 12. a crack in the earth's crust along which rocks move.