Earth and Space Pt II: Revenge of the Natural Disasters

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Across
  1. 2. The rock that the oceanic crust is primarily made of
  2. 3. Theory of Plate ______________
  3. 6. His first name is Alfred, and he is the father of continental drift.
  4. 7. A sudden violent shaking of the ground.
  5. 9. The internal part of the seismograph, which may be a pendulum or a mass mounted on a spring
  6. 10. The outermost layer of Earth
Down
  1. 1. Earth's magnetic field, that helps protect Earth from the Sun's harmful solar winds.
  2. 4. The spot on the surface directly (vertical) from the focus.
  3. 5. The origin of an earthquake, often below ground.
  4. 8. The type of scale used to measure the intensity of an earthquake