Inside Earth Chapter 2 Key Terms

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Across
  1. 2. a type of seismic wave that moves the ground up and down or side-to-side
  2. 3. the force that opposes the motion of one surface as it moves across another surface
  3. 10. a type of fault where the hanging wall slides upward; caused by compression in the crust
  4. 11. an earthquake that occurs after a larger earthquake in the same area
  5. 13. a type of fault in which rocks on either side move past each other sideways with little up or down movement
  6. 14. a device that records ground movements caused by seismic waves as they move through Earth
  7. 16. a type of seismic wave that forms when P waves and S waves reach Earth's surface
  8. 19. a scale that rates earthquakes by estimating the total energy released by an earthquake
  9. 23. the measurement of an earthquake's strength based on seismic waves and movement along faults
  10. 24. an upward fold in rock formed by compression of Earth's crust
  11. 27. a type of fault where the hanging wall slides downward; caused by tension in the crust
  12. 28. the point on Earth's surface directly above an earthquake's focus
Down
  1. 1. stress that squeezes rock until it folds or breaks
  2. 2. a downward fold formed by compression in Earth's crust
  3. 4. a scale that rates an earthquake's magnitude based on the size of its seismic waves
  4. 5. a scale that rates earthquakes according to their intensity and how much damage they cause at a particular place
  5. 6. the process by which an earthquake's violent movement suddenly turns loose soil into liquid mud
  6. 7. a building mounted on bearings designed to absorb the energy of an earthquake
  7. 8. the block of rock that forms the upper half of a fault
  8. 9. the block of rock that forms the lower half of a fault
  9. 12. stress that pushes masses of rock in opposite directions, in a sideways movement
  10. 15. the record of an earthquake's seismic waves produced by a seismograph
  11. 17. the point beneath Earth's surface where rock breaks under stress and causes an earthquake
  12. 18. stress that stretches rock so that it becomes thinner in the middle
  13. 20. a large wave produced by an earthquake on the ocean floor
  14. 21. the shaking that results from the movement of rock beneath Earth's surface
  15. 22. a large area of flat land elevated high above sea level
  16. 25. a type of seismic wave that compresses and expands the ground
  17. 26. a force that acts on rock to change its shape or volume