Across
- 3. a sudden and violent shaking of the ground from movements in the earth's crust or volcanic action.
- 4. A violently rotating column of air touching the ground, usually attached to the base of a thunderstorm.
- 6. a long high sea wave caused by an earthquake, submarine landslide.
- 7. a severe snowstorm with high winds and low visibility.
- 8. when lava and gas are released from a volcano—sometimes explosively.
- 10. a large, destructive fire that spreads quickly over woodland or brush.
Down
- 1. a prolonged period of abnormally low rainfall.
- 2. a tropical storm with winds that have reached a constant speed of 74 miles per hour or more.
- 5. mass of snow, ice, and rocks falling rapidly down a mountainside.
- 9. This is when water overflows river banks or onto land that is normal dry.