Hydrological disasters

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Across
  1. 2. an Atlantic hurricane
  2. 5. a burst of C02 gas in a lake
  3. 7. a fast swirl of water
Down
  1. 1. a sudden rush of water
  2. 3. a tornado over water
  3. 4. Japanese word for harbour waves
  4. 6. a flow of submerging property