Natural disasters

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Across
  1. 2. A person who studies earthquakes
  2. 3. A land avalanche with rocks and dirt
  3. 5. Something that measures the power of an earthquake.
  4. 6. Something that makes things fall over
  5. 7. Things that are compact
Down
  1. 1. To put something in the wrong place
  2. 4. Something that is really badly distroyed