Topic 1: Hazardous Earth - Volcanoes and Earthquakes

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Across
  1. 1. Measures the effects of an earthquake at a given location.
  2. 3. Type of volcano which is relatively flat and wide.
  3. 5. Large volcano generally composed of lava flows, pyroclastic deposits, and mudflows.
  4. 10. Type of plate boundary where plates move towards each other.
  5. 11. Type of lava which is very viscous and has a high silica content.
  6. 12. Where dense oceanic crust moves underneath continental crust.
  7. 13. Measures the magnitude of an earthquake (strength of seismic waves).
  8. 14. Type of lava which is runny, has a low silica content, and can travel great distances.
  9. 15. Magma forced upwards at a divergent plate boundary, forcing the plates apart.
Down
  1. 2. The point on the Earth's surface above the earthquake's focus.
  2. 4. An area of the Earth's mantle from which hot plumes rise upwards, forming volcanoes.
  3. 6. __________ effects are the immediate impacts of a hazard.
  4. 7. Type of plate boundary where plates slide past each other.
  5. 8. The point within the Earth's crust where an earthquake is occurs.
  6. 9. Crack in the Earth's crust, through which magma can rise.
  7. 16. The effect of gravity on oceanic crust, encouraging it to sink into the mantle.