Earthquakes

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Across
  1. 2. An instrument used to detect and record earthquakes
  2. 4. The shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere that creates seismic waves.
  3. 5. A 1 -10 scale that measures of the strength of earthquakes
  4. 8. The place where the rupture of the plate boundary that led to the earthquake first happened.
  5. 9. _____ plates are pieces of Earth's crust and uppermost mantle, together referred to as the lithosphere.
Down
  1. 1. A _____ boundary occurs when two tectonic plates move away from each other.
  2. 3. A number, used on the Richter Scale, to quantify the amount of seismic energy released by an earthquake
  3. 6. The point on the surface of the Earth directly above the hypocenter of an earthquake.
  4. 7. _____ waves are waves of energy that travel through Earth's layers, and are a result of earthquakes, volcanic eruptions, magma movement, etc.
  5. 9. Giant waves caused by earthquakes or volcanic eruptions under the sea