Natural Hazards.

2. The loose material brought down by a river and deposited on its bed, flood plain or delta.
4. Aerially burning fuel that blows ahead of a firefront.
5. A fire burning out of control in the open; also called a wildfire.
6. The edge of a fire that spreads fastest.
8. A storm associated with lightning and thunder, occuring with cumulonimbus clouds.
9. An intense fire that may generate strong convection currents and violent winds causing long-range spotting and flame spirals.
12. A severe weather event that occurs where warm, moist, rising air begins to spiral upwards. Tropical cyclones are often accompanied by very strong winds, heav rain and rough seas.
14. A prolonged period of very hot weather.

1. The point on the Earth's surface directly above the focus of an eartquake.
3. An extreme event that is the result of natural procceses and causes serious material damage or loss of life.
6. Part of a river valley covered by water during floods.
7. A prolonged period of below average precipitation.
10. An unusual accumlation of water that overflows from rivers, lakes and the ocean onto land that is normally covered by water.
11. Shaking of the ground that is generatefd by disturbances in the Earth's crust.
13. A surface where a cool air mass meets a warmer mass, into which it is advancing.