Natural disasters

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Across
  1. 1. a rapid flow of snow down a slope
  2. 4. a series of ocean waves caused by a large underwater disturbance
  3. 9. a vent in the earth's crust through which molten rock
  4. 10. a sudden and violent shaking of the ground
Down
  1. 2. a tropical cyclone characterized by strong winds and heavy rainfall
  2. 3. an uncontrolled fire occurring in vegetation, such as forests
  3. 5. a severe snowstorm characterized by strong winds
  4. 6. a prolonged period of abnormally low precipitation
  5. 7. an overflow of water onto land
  6. 8. a rapidly rotating column of air extending from a thunderstorm to the ground