Across
- 3. slower than P-waves
- 5. the point directly above an earthquake
- 7. plates move away, forming a mid ocean ridge or rift-valley
- 8. two plates come together forming a trench
- 9. theory that Earth's crust is resting on a fluid which allows it to move
- 10. faster than S-waves
- 13. plates slide past each other
- 14. giant waves generated by earthquakes
Down
- 1. S-waves cant go through here, this area is said to be liquid
- 2. causes the plates to move
- 4. no earthquake waves can be recorded here
- 5. the shaking of Earth's crust
- 6. low density, old age, thick, made of granite
- 11. high density, young age, thin, made of basalt
- 12. places where magma comes up through Earth's crust that aren't necessarily at or near a plate boundary