News tagged with seismic
Earth's outer core deprived of oxygen: study
The composition of the Earth's core remains a mystery. Scientists know that the liquid outer core consists mainly of iron, but it is believed that small amounts of some other elements are present as well. Oxygen ...
Space & Earth / Earth Sciences
Nov 23, 2011 |
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Geophysicists claim conventional understanding of Earth's deep water cycle needs revision
A popular view among geophysicists is that large amounts of water are carried from the oceans to the deep mantle in "subduction zones," which are boundaries where the Earth's crustal plates converge, with ...
Space & Earth / Earth Sciences
Oct 18, 2010 |
4.9 / 5 (17) |
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Scientists recreate extreme conditions deep in Earth's interior
(PhysOrg.com) -- University of California, Berkeley, and Yale University scientists have recreated the tremendous pressures and high temperatures deep in the Earth to resolve a long-standing puzzle: why some ...
Space & Earth / Earth Sciences
Sep 23, 2010 |
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North American continent is a layer cake, scientists discover
(PhysOrg.com) -- The North American continent is not one thick, rigid slab, but a layer cake of ancient, 3 billion-year-old rock on top of much newer material probably less than 1 billion years old, according ...
Space & Earth / Earth Sciences
Aug 25, 2010 |
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Scientists probe Earth's core
We know more about distant galaxies than we do about the interior of our own planet. However, by observing distant earthquakes, researchers at the University of Calgary have revealed new clues about the top ...
Space & Earth / Earth Sciences
Apr 28, 2010 |
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Researchers show how far South American cities moved in quake
The massive magnitude 8.8 earthquake that struck the west coast of Chile last month moved the entire city of Concepcion at least 10 feet to the west, and shifted other parts of South America as far apart as ...
Space & Earth / Earth Sciences
Mar 08, 2010 |
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Yellowstone's plumbing exposed
(PhysOrg.com) -- The most detailed seismic images yet published of the plumbing that feeds the Yellowstone supervolcano shows a plume of hot and molten rock rising at an angle from the northwest at a depth ...
Space & Earth / Earth Sciences
Dec 14, 2009 |
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Hawaiian hot spot has deep roots
(PhysOrg.com) -- Hawaii may be paradise for vacationers, but for geologists it has long been a puzzle. Plate tectonic theory readily explains the existence of volcanoes at boundaries where plates split apart ...
Space & Earth / Earth Sciences
Dec 03, 2009 |
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Earthquakes actually aftershocks of 19th century quakes
(PhysOrg.com) -- When small earthquakes shake the central U.S., citizens often fear the rumbles are signs a big earthquake is coming. Fortunately, new research instead shows that most of these earthquakes ...
Space & Earth / Earth Sciences
Nov 04, 2009 |
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Major quakes can weaken seismic faults far away, scientists say
(PhysOrg.com) -- U.S. seismologists have found evidence that the massive 2004 earthquake that triggered killer tsunamis throughout the Indian Ocean weakened at least a portion of California's famed San Andreas ...
Space & Earth / Earth Sciences
Sep 30, 2009 |
4.9 / 5 (8) |
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Sichuan quake was once-in-4,000-year event: scientists
People who were killed, injured or bereaved in the 2008 Sichuan earthquake had the cruel misfortune to be victims of an event that probably occurs just once in four millennia, seismologists said on Sunday.
Space & Earth / Earth Sciences
Sep 27, 2009 |
3.8 / 5 (5) |
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New design keeps buildings standing and habitable after major earthquakes (w/ Video)
A new earthquake-resistant structural system for buildings, just successfully tested in Japan, will not only help a multi-story building hold itself together during a violent earthquake, but also return it ...
Sep 02, 2009 |
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Team confirms Alps-like mountain range under East Antarctic Ice Sheet
(PhysOrg.com) -- Flying twin-engine light aircraft the equivalent of several trips around the globe and establishing a network of seismic instruments across an area the size of Texas, a U.S.-led, international ...
Space & Earth / Earth Sciences
Feb 24, 2009 |
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Autopsy of a eruption: Linking crystal growth to volcano seismicity
A forensic approach that links changes deep below a volcano to signals at the surface is described by scientists from the University of Bristol in a paper published today in Science. The research could ultima ...
Space & Earth / Earth Sciences
May 24, 2012 |
3.5 / 5 (2) |
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'Creeping quakes' rumble New Zealand: researchers
Researchers have discovered New Zealand's earthquake-prone landscape is even more unstable than previously thought, recording deep tremors lasting up to 30 minutes on its biggest fault line.
Space & Earth / Earth Sciences
May 23, 2012 |
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