Hurricanes can be classified in five categories according to their sustained wind speeds.
The Saffir-Simpson wind scale is used to measure the destructive power of Atlantic hurricanes.
Have a look at the five different categories and what they mean.
Homes could have damage to roof, shingles, vinyl siding and gutters.
Large branches of trees will snap and shallowly rooted trees may be toppled.
Extensive damage to power lines and poles likely will result in power outages.
Homes could sustain major roof and siding damage.
Many shallowly rooted trees will be snapped or uprooted and block numerous roads.
Near-total power loss is expected with outages that could last from several days to weeks.
Homes may incur major damage or removal of roof decking and gable ends.
Many trees will be snapped or uprooted, blocking numerous roads.
Electricity and water will be unavailable for several days to weeks after the storm passes.
Homes sustain severe damage with loss of most of the roof structure and/or some exterior walls.
Most trees will be snapped or uprooted and power poles downed with outages lasting for weeks or months.
Most of the area will be uninhabitable for weeks or months.
A high percentage of homes will be destroyed, with total roof failure and wall collapse.
Fallen trees and power poles will isolate residential areas.
Power outages will last for weeks to possibly months.
Most of the area will be uninhabitable for weeks or months.
Tectonic plates cover the surface of the earth. They are slow-moving, but they get stuck at their edges due to friction. When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth’s crust and cause the shaking that we feel.
Learn about what floods are, why they happen and how we respond.
Find out more about what hurricanes are, the difference between hurricanes, typhoons and cyclones, and other interesting facts.