Quakes

12345678910111213141516171819202122
Across
  1. 4. the outermost major layer of the earth.
  2. 5. minor shock following the main shock of an earthquake.
  3. 7. fracture between 2 blocks of rock.
  4. 8. an area on Earth where 2 or more litospheric plates collide.
  5. 9. caused by the direct interaction of seismic wave energy with the ground.
  6. 11. an elastic wave in the earth produced by an earthquake.
  7. 13. the point of the earthś surface vertically above the focus of an earthquake.
  8. 14. shaking of the earthś surface
  9. 15. A scientist who studies earthquakes.
  10. 17. smaller earthquakes that precede the largest earthquake in a series.
  11. 19. 2 tectonic plates move away from each other.
  12. 22. state in US known for the most earthquakes
Down
  1. 1. The point where rocks break and release energy in the form of seismic waves.
  2. 2. gigantic pieces of the Earthś crust
  3. 3. an event that has unfortunate consequences.
  4. 6. A measure of the energy released by an earthquake
  5. 10. This city in California experienced an earthquake in 1989.
  6. 12. ocean wave caused by an earthquake
  7. 16. study of the materials, processes, products, physical nature, and history of the earth.
  8. 18. An instrument used to detect and record earthquakes
  9. 20. country known for the most earthquakes.
  10. 21. the innermost part of the earth