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Massive Japan Quake Even Rattled Upper AtmosphereLink could provide early warning for tsunamis.
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Japan Tsunami Broke Huge Icebergs Off AntarcticaNASA satellites captured images and video of event.
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Japan Quake Released Hundreds of Years of StrainJapan Trench continues to slip, relieve strain.
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Japan Quake Raises Shaking Risk Elsewhere in CountryStress relieved on one fault and shifted to others.
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Why the Japan Tsunami Was So Big
Japan's massive quake was a two-part rupture, researchers say.
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Our Daily Planet: Memphis Flood Crest Video and Alabama Tornadoes' Tiniest Victims
Today's Earth news headlines and links.
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Mechanics of World's Largest Earthquakes RevealedSubduction zone faults become 'locked,' then release huge amounts of stress.
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Surprise Finding: Why Japan's Earthquake Was So StrongJapan's biggest earthquake of all time could have been even bigger.
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Are We in an Age of Great Earthquakes?
