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Air Guns Give Glimpse Inside a Subduction ZoneSeismic waves show what happens when one tectonic plate dives beneath another.
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Imported Tortoises Could Replace Madagascar's Extinct OnesTortoises from a nearby island are genetically and morphologically similar.
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Mexican Monolith Is World's Tallest Freestanding RockPeña de Bernal Natural Monument is a UNESCO-recognized site.
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Helium Gas Heralded Underwater Volcano EruptionEl Hierro volcano emitted helium with distinct signatures as it rumbled to life.
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Earth Is 'Lazy' Along Some Earthquake FaultsEarth's crust takes the path of least resistance when a fault bends.
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Appalachians Get a Face-Lift From Earth's MantleSouthern reaches not as old, worn-down as thought.
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Aftershocks May Portend Major Philippine EarthquakeSubduction zone has been eerily quiet.
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How Thick Is the Crust Beneath Antarctica?Seismic data gives new estimates for curst of least-known continent.
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3D Imaging Sizes Up Volcanic Island LandslidesMassive volcanic landslides can trigger catastrophic tsunamis.
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Expeditions to Earth's Hostile Corners in 2013Adventurers prepare to hike, sail and ski.
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Russian Far East, Once Closed-Off, Poses Seismic HazardEarthquake and volcanoes of region once hidden behind the iron curtain.
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New 3D Maps Show Walruses' Icy WorldWalruses need ice that isn't too big or too small.
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Ancient Earthquake Foreshadowed 2011 Japan DisasterPrecedent found for 2011 quake and tsunami.
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Microbe Masses Under Seafloor Are DownsizedNumber revised downward, but still a swarm of microbes down there.
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Some Himalayan Glaciers Doomed to ShrinkEven with steady temperatures, these glaciers will retreat.
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Gold Rises With Molten RockAccounts for why some spots have higher concentrations of the rare metal.
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Satellites Track Post-Sandy PollutantsSewage and sediment were washed to sea by Sandy's surge.
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Why Hurricane Sandy Hit Staten Island So HardGeography dealt a tough hand to the NYC borough.
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Will Sandy Change the Climate Change Conversation?Some see Sandy as an opportunity to act on climate change.
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Leaks Found in Earth's Protective ShieldPhenomenon in magnetosphere can act to let solar particles in.
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Italy’s Shaky Past Hidden in Ancient RecordsA 14th century eruption stopped a local war.
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Italy's Shaky Past Hidden in Ancient RecordsA 14th century eruption stopped a local war.
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World's Northernmost Coral Reef Discovered in JapanThis reef grows in colder waters than most do.
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Earthquakes Reveal Magma Plumbing Beneath VolcanoesThese volcanoes set off the 20th century's largest eruption.
