Across
- 3. A _______ fault is caused by compression.
- 5. The study of earthquakes.
- 8. A smaller earthquake that occurs after the main event.
- 10. The Ring of ____ is an area bordering the Pacific Ocean where many earthquakes occur.
- 11. _______ waves arrive after p waves and s waves.
- 12. The movement of earth's plates is called plate _________.
- 14. Rocks slide past each other.
- 15. A __________ fault is caused by shearing (two words, no spaces).
- 16. __________ zones result in movement along fault lines.
- 17. The strength of an earthquake.
- 20. Measures and records details of earthquakes.
- 21. The ________ Scale describes what you might see and feel during an earthquake.
- 22. Compression, tension, and shearing are types of ______ on rocks.
- 23. A series of waves generated by an earthquake under the ocean.
Down
- 1. A ______ fault is caused by tension.
- 2. The point in the earth where the earthquake originates.
- 4. The _______ Scale measures the magnitude of earthquakes.
- 6. Rocks move together.
- 7. Seismic waves that move back and forth, or up and down (no spaces).
- 9. _______ waves help determine which layers of the earth are solid or liquid.
- 12. Rocks move away from each other.
- 13. The point on the earth's surface above the focus.
- 18. _________ boundaries contribute to earthquakes and volcanic eruptions.
- 19. Seismic waves that shake back and forth (no spaces).
