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Mind Map Mind Map ofof
Catastrophic EventsCatastrophic Events
Catastrophic Events
Tornado
Drought
Forestfire
Hurricane
Wind storm
Thunderstorm
Dust Devil
Volcano
Tsunami
Earthquake
Flooding
Tornadoes Tornadoes occur in the central and southern U.S.,
where warm, humid air from the Gulf of Mexico collides with cool, dry air from the Rockies and Canada.
Tornadoes are usually transparent until they pick up dust and dirt
Tornadoes can have a wind speed of 250 mph or more
Tornadoes can also travel at 30 mph -70 mph
Volcanoes Volcano
1. Magma chamber
2. Country rock
3. Conduit (pipe)
4. Base
5. Sill
6. Branch pipe
7. Layers of ash emitted by the volcano
8. Flank
9. Layers of lava emitted by the volcano
10. Throat
11. Parasitic cone
12. Lava flow
13. Vent
14. Crater
15. Ash cloud
Tsunamis
Tsunamis are usually made by earthquakes Tsunamis can become over 50 feet tall The Boxing Day Tsunami in 2004 caused
approx. 350,000 deaths and many more injuries.
Forest Fire
Surface fires typically burn rapidly at a low intensity and
consume light fuels while presenting little danger to mature trees and root systems. Crown fires generally result from ground fires and occur in the upper sections of trees, which can cause embers and branches to fall and spread the fire. Ground fires are the most infrequent type of fire and are very intense blazes that destroy all vegetation and organic manner, leaving only bare earth. These largest fires actually create their own winds and weather, increasing the flow of oxygen and "feeding" the fire.
There are three major kinds of forest fires.