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How Earthquakes Work (2:17)
How do earthquakes work? Learn more about earthquakes in this HowStuffWorks video.
What Are the Odds? Earthquake (2:53)
What are the odds there will be an earthquake in the next 100 years? Learn more about the probability of earthquakes in this video.
How Tornadoes Work (6:30)
Tornadoes are one of the most violent type of storms, with 800 each year in the U.S. Learn more about tornadoes in this video from Discovery.
Our Restless Planet: Fault Lines and Earthquakes (3:38)
The Earth's crust has cracks, known as faults, where earthquakes originate. At a fault line, each side tries to move but doesn't until there is enough stress built up. As earthquakes occur at plate boundaries, seismic waves are released.
Tsunami Science: Survivors (2:15)
A tsunami survivor tells his story. Learn more about global disasters in this video.


