Natural Disasters

123456
Across
  1. 4. an instrument used to detect and record earthquakes.
  2. 5. hot fluid in the mantle.
  3. 6. roughly circular depression in the ground.
Down
  1. 1. a sudden shaking of the ground.
  2. 2. caused by heavy rain.
  3. 3. a storm with a violent wind or cyclone.