Natural disasters

1234567
Across
  1. 3. a long period of heat without water
  2. 5. a strong or slight tremor of the earth
  3. 6. a bright flash of electricity between a cloud and the ground
  4. 7. an overflowing river or dam
Down
  1. 1. a huge wave in the sea caused by an earthquake
  2. 2. a mass of snow falling down the mountain
  3. 4. a collapse of a mass of rock or earth from a mountain