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It is estimated that the March 11, 2011 earthquake in Japan was 1,000 times more powerful than the quake that struck Haiti in 2010. Watch as Smithsonian geologist Dr. Liz Cottrell explains this and more about the major earthquake and tsunami in Japan.
Video

Understanding the Japan Earthquake and Tsunami

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Waves breaking on the shore
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Waves Rolling

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Screenshot from video of an aerial view of the ocean drilling vessel Chikyu.
Video

The Ocean Drilling Vessel Chikyu

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Map of ocean temperatures
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In Hot Water

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A view of a hurricane's eyewall
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Eye of the Storm

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the foamy surface of the ocean
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Waves in Motion

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A NASA satellite image from August 23, 2011 of Hurricane Irene, the Atlantic basin's first hurricane of 2011.
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Hurricane Irene

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a diagram showing the parts of an ocean wave
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The Anatomy of a Wave

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Hurricanes hurt humans and marine life.
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Hurricanes and Marine Life

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The grasses and animals living in marshes help to filter water and stabilize shorelines, along with providing habitat for a variety of mammals, fish, shellfish and amphibians and a haven for migratory waterfowl.
Article

How Hurricanes Shape Wetlands in Southern Louisiana

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Two nurse sharks hover over a baited cage
Lesson Plan

Wave Size and Depth

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Two nurse sharks hover over a baited cage
Lesson Plan

What is El Nino?

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