Natural disasters

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Across
  1. 2. massive ocean wave caused by an underwater earthquake
  2. 3. storm with heavy snow and strong winds
  3. 4. sudden downhill movement of soil or rock
  4. 7. storm with very strong winds
Down
  1. 1. frozen rain that falls as small balls of ice
  2. 2. violent rotating column of air
  3. 5. period of little or no rain
  4. 6. sudden shaking of the ground