Natural disasters

2. A long period of abnormally low rainfall, especially one that adversely affects growing or living conditions.
6. A violent rotating windstorm.
7. A natural depression in a land surface communicating with a subterranean passage, generally occurring in limestone regions and formed by solution or by collapse of a cavern roof.
9. A raging, rapidly spreading fire.
11. A rotating column of air ranging in width from a few yards to more than a mile and whirling at destructively high speeds, usually accompanied by a funnel-shaped downward extension of a cumulonimbus cloud.
12. A fall or slide of a large mass, as of snow or rock, down a mountainside.
13. A very large ocean wave caused by an underwater earthquake or volcanic eruption.
14. A transient, sometimes violent storm of thunder and lightning, often accompanied by rain and sometimes hail.
15. wave A period of very hot weather.

1. A tropical cyclone occurring in the western Pacific or Indian oceans.
3. A storm with hail.
4. A very heavy snowstorm with high winds.
5. An overflowing of water onto land that is normally dry.
8. An opening in the earth's crust through which molten lava, ash, and gases are ejected.
10. A sudden movement of the earth's crust caused by the release of stress accumulated along geologic faults or by volcanic activity. Also called seism, temblor.