Seismic Waves

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Across
  1. 3. Force applied to rock in two opposing directions parallel to a surface such as a fault plane
  2. 5. The zone in which seismic waves are not recorded
  3. 8. Compressional seismic waves generated by earthquakes
  4. 10. The layer of solid rock between Earth’s crust and core
  5. 11. The liquid outer portion of Earth's core, composed primarily of iron and nickel
  6. 14. A crack in a body of rock along which rocks on opposite sides slide past each other
  7. 18. A tectonic plate boundary at which two tectonic plates move away from each other
  8. 20. The size of ground movement caused by seismic waves due to energy released
  9. 21. The innermost layer of Earth, comprised of the liquid outer core and solid inner core; consists mainly of iron and nickel
  10. 22. The visual record produced by a seismograph, showing the arrival times and magnitudes of various seismic waves
  11. 23. transverse seismic waves generated by earthquakes; aka shear or secondary
  12. 25. A seismic wave which travels along or just below Earth's surface
  13. 27. Occurs when rocks are squeezed by external forces directed toward one another
  14. 29. A logarithmic scale used to measure the magnitude of an earthquake; ranges from 1 to 10
Down
  1. 1. The lower part of the upper mantle; solid but soft and can move slowly
  2. 2. The number of waves that pass a given point during a specified period of time
  3. 4. The theory that describes the movement and recycling of segments of Earth's crust
  4. 6. The sudden movement of rock within Earth's crust caused by accumulated stress along a fault
  5. 7. a measurement of the strength of an earthquake based on the amount and type of damage
  6. 9. The crust that makes up the base of the continents; less dense than oceanic crust
  7. 12. Waves of energy that travel through Earth’s interior due to an earthquake, other tectonic forces, or an explosion
  8. 13. A tectonic plate boundary at which two tectonic plates move toward each other, causing collisions and subduction zones
  9. 14. The location beneath Earth's surface where an earthquake begins; directly beneath the epicenter
  10. 15. A tectonic plate boundary along which plates slide horizontally past one another in opposite directions
  11. 16. Force that acts on rocks to cause deformation by tension, compression, or shear
  12. 17. The solid, inner portion of Earth's core, composed of an alloy of iron, nickel, and other heavy elements; rotates within the liquid outer core
  13. 19. The portion of Earth's crust that makes up the ocean floor; denser and thinner
  14. 24. The location on Earth's surface that is directly above an earthquake's focus
  15. 26. A bend in originally horizontal rock layers, caused by pressure or heat that softens the rock.
  16. 28. an instrument used to detect and measure earthquake waves and other ground vibrations