Earthquakes and volcanoes

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Across
  1. 2. A deep canyon on the ocean floor
  2. 6. A plate boundary where two plates move toward each other
  3. 7. Earthquakes occur
  4. 8. mountain built from magma.
  5. 10. where volcanoes occur
  6. 12. melted rock that was found beneath the surface of the earth
  7. 13. When rocks that are under stress suddenly break, a series of ground vibrations is set off
  8. 15. a break in the Earth’s crust
Down
  1. 1. Directly above the focus, on the Earth’s surface
  2. 3. A plate boundary where two plates move away from each other
  3. 4. The process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary
  4. 5. The point beneath the surface where the rocks break and move
  5. 9. Alfred Wegener's hypothesis that the continents were once one huge land mass but have since then drifted apart
  6. 11. A plate boundary where two plates grind against each other, moving it different directions
  7. 14. A deep valley where two plates move apart