Natural disaster cause

All of the following are natural disasters except

What type of natural disaster do you see in this photo?

What type of natural disaster do you see in this photo?

What type of natural disaster do you see in this photo?

What type of natural disaster do you see in this photo?

When warm air and cold air mix together to form a spiral vortex that hits the floor.

What type of natural disaster do you see in this photo?

What type of natural disaster do you see in this photo?

What type of natural disaster do you see in this photo?

What type of natural disaster do you see in this photo?

When lava and gas are released from a volcano—sometimes explosively.

What natural disaster do you see here?

A mass of snow, ice, and rocks falling rapidly down a mountainside.

A tropical storm with winds that have reached a constant speed of 74 miles per hour or more. 

The sliding down of a mass of earth or rock from a mountain or cliff.

A long high sea wave caused by an earthquake, submarine landslide, or other disturbance.

A hole or cavity that appears in the ground, caused by water erosion.

A long period of abnormally low rainfall, leading to a shortage of water.

A sudden and violent shaking of the ground, sometimes causing great destruction, because of movements within the earth's crust or volcanic action.

A large, destructive fire that spreads quickly over woodland or brush.

An overflowing large amount of water covering beyond it’s normal area over what is suppose to be dry land.