Tectonics Revision

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Across
  1. 2. A large volcanic crater formed after an eruption.
  2. 8. The roman numeral scale for earthquakes based on observations
  3. 10. The national park where one of the world’s supervolcanoes is located
  4. 12. Slurry of pyroclastic material, mud and debris from a volcano.
Down
  1. 1. The MEDC country which experienced an earthquake in 2010
  2. 2. These plates slide past each other
  3. 3. Molten rock expelled from a volcano during an eruption.
  4. 4. scale The logarithmic scale to measure an earthquake’s magnitude
  5. 5. The point on earth’s surface directly above the focus point of an earthquake
  6. 6. Type of volcano that have a wide base and gentle sloping side
  7. 7. This crust is less dense and very old
  8. 9. One of the main economic benefits of fold mountains, especially the Alps
  9. 11. This plate is sinking below the South American Plate