A sudden movement of the Earth's surface, often causing severe damage.
Earthquake
If a volcano erupts, it suddenly throws out smoke, fire, and melted rocks.
Volcanic eruption.
A long, high sea wave caused by an earthquake or other disturbance.
Tsunami
A violent windstorm in the shape of a funnel cloud that reaches to the ground.
Tornado
A tropical storm with winds that have reached a constant speed of 74 miles per hour or more.
Hurricane
A large, destructive fire that spreads quickly over woodland or brush.
Wildfire
The covering of normally dry land with a large amount of water.
Flooding
Period of abnormally low rainfall, leading to a shortage of water.
Drought
A prolonged period of abnormally hot weather.
Heat wave
A mass of snow, ice, and rocks falling rapidly down a mountainside.
Avalanche
A collapse of a mass of earth or rock from a mountain or cliff.
Landslide
A violent disturbance of the atmosphere with strong winds and usually rain, thunder, lightning, or snow.
Storm
Frozen rain which fall in showers from clouds.
Hail
A strong wind carrying clouds of sand with it, especially in a desert.
Sandstorm
