Natural Hazards & Disasters

A natural hazard occurs when natural physical processes become...

• dormant and inactive.
• extreme and unpredictable.
• scary!
• faster than usual. 

A tsunami is...

• a spinning windstorm that forms over the ocean.
• a series of ocean waves.
• a vibration deep within the Earth or at its surface.
• when magma rises through the Earth's surface. 

Earthquakes are caused by all of the following EXCEPT...

• movement of tectonic plates.
• tsunamis.
• volcanic activity. 
• underground collapses. 

Which of the following statements about natural hazards is NOT true?

• Hazards are natural processes that CAN be dangerous, but have not yet caused damage.
• Hazards become disasters when they harm many people.
• Some hazards can be predicted, but usually can't be stopped.
• Hazards are natural processes that harm people on a regular basis.

Of the four natural hazards we've studied, which is the hardest to predict?

• Tsunamis
• Volcanoes
• Tropical Cyclones
• Earthquakes

One region of the world that is very exposed to volcanoes, tsunamis, and earthquakes is...

• the Ring of Fire.
• the North and South Pole.
• the United States.
• Eastern Europe.

A natural disaster occurs when a natural hazard...

• causes major damage and harms humans.
• poses a danger to any part of the earth.
• changes the physical features of the earth.
• impacts everyday life for humans.

Rock underground suddenly breaks causing movement is a description of which natural hazard?

• Volcanic Eruption

• Hurricane

• Earthquake

• Tornado

Which of the following are potential effects of a natural disasters (check all that apply)?

• spread of disease due to reduced standards of sanitation

• disruption of communication networks

• disruption of government and its services

• loss of jobs and businesses

Flooding, property damage, fatalities, and fires are all common effects of what natural hazard?

• Tsunamis and Earthquakes

• Volcanoes and Tornados

• Hurricanes and Earthquakes

• Tsunamis and Hurricanes