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Rare Caterpillar-like Horizontal Earthquake DiscoveredQuake caused by rare horizontal fault, which shifted city one foot.
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Why North America Won't Erode AwaySignatures in ancient rocks show continent's erosion history.
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Seafloor "Bridges" Found to Span Earth's Deepest TrenchMapping effort finds structures bridging Mariana Trench.
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Surprising Christmas Island Seamounts Mystery SolvedHow these features formed has been debated.
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Is Ozone Gas an Earthquake Precursor?Can't predict quakes but could provide warning.
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Massive Sea-floor Shove Triggered Japan's TsunamiMeasurements show huge displacements of ocean floor that set off waves.
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How Did the Gulf of California Form So Quickly?This sea rifted apart much faster than other ocean basins.
