Across
- 3. indicator of possible danger
- 4. great size or extent of something
- 6. giant harmful wave
- 9. something that is broken
- 10. the height of the wave
Down
- 1. predict or estimate
- 2. point on Earth's surface vertically above earthquake
- 5. movement of tectonic plates
- 7. existing or caused by nature
- 8. danger or risk