Across
- 2. plate boundary where plates move side by side
- 4. volcano that has both explosive and quiet eruptions
- 7. type of fault that drops rock down on one side relative to the other
- 8. a volcano that erupts continually or frequently
- 9. measure of energy released during an earthquake
- 10. magnitude scale that describes the strength of an earthquake
- 11. place in earth's crust where pressure is released
- 13. energy waves that travel outward from an earthquake
- 14. plate boundaries that collide
- 15. place where the 9.0 earthquake and tsunami happened
- 16. the act of one plate being forced under another
- 17. volcano with steep sides and is explosive
- 18. spot on earth's surface directly above the focus
- 20. a volcano that is "sleeping"
- 22. the ocean bounded by the Ring of Fire
- 23. plate boundary that moves apart, allowing volcanoes to occur
- 25. when volcanoes happen in the middle of a plate
Down
- 1. seismic wave that produces a rolling motion
- 3. earthquake and volcano zone in the middle of the Atlantic Ocean
- 5. the fastest seismic wave
- 6. shaking of the earth
- 12. seismic wave that causes particles to move at right angles to direction of wave travel
- 13. the San Andreas is this type of fault
- 16. study of earthquakes and seismic waves
- 19. a volcano that hasn't erupted in modern times
- 21. type of fault that moves rock up on one side relative to the other
- 24. volcano with a gentle slope and quiet eruptions