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News tagged with seismic

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

created Dec 14, 2009 | popularity 4.8 / 5 (49) | comments 18

The strange rubbing boulders of the Atacama

A geologist's sharp eyes and upset stomach has led to the discovery, and almost too-close encounter, with an otherworldly geological process operating in a remote corner of northern Chile's Atacama Desert.

Space & Earth / Earth Sciences

created Oct 11, 2011 | popularity 4.9 / 5 (23) | comments 45 | with audio podcast

Mediterranean Sea filled in less than two years: study

The Mediterranean Sea was mostly filled in less than two years in a dramatic flood around 5.33 million years ago in which water poured in from the Atlantic, according to a study published Wednesday.

Space & Earth / Earth Sciences

created Dec 09, 2009 | popularity 4.7 / 5 (23) | comments 2

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

created Nov 04, 2009 | popularity 4.4 / 5 (20) | comments 13

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

created Apr 28, 2010 | popularity 4.4 / 5 (20) | comments 4 | with audio podcast

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

created Oct 18, 2010 | popularity 4.9 / 5 (17) | comments 3 | with audio podcast

Lopsided Growth at the Earth's Core

What has twisted the Earth’s core so asymmetrically out of shape? That question has been a long-standing mystery for scientists, but two new studies are shining some light on the geodynamic processes that ...

Space & Earth / Earth Sciences

created Apr 21, 2010 | popularity 4.8 / 5 (17) | comments 9 | with audio podcast

A New Kind Of Lightning Discovered

When volcano seismologist Stephen McNutt at the University of Alaska Fairbanks's Geophysical Institute saw strange spikes in the seismic data from the Mount Spurr eruption in 1992, he had no idea that his ...

Space & Earth / Earth Sciences

created Jan 28, 2010 | popularity 4.5 / 5 (18) | comments 6 | with audio podcast

Electric Yellowstone: Conductivity image hints volcano plume is bigger than thought

University of Utah geophysicists made the first large-scale picture of the electrical conductivity of the gigantic underground plume of hot and partly molten rock that feeds the Yellowstone supervolcano. The ...

Space & Earth / Earth Sciences

created Apr 11, 2011 | popularity 4.7 / 5 (15) | comments 13 | with audio podcast

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

created Sep 23, 2010 | popularity 4.5 / 5 (15) | comments 1 | with audio podcast

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

created Mar 08, 2010 | popularity 4.5 / 5 (15) | comments 3 | with audio podcast

Huge undersea mountain found off Indonesia: scientists

A massive underwater mountain discovered off the Indonesian island of Sumatra could be a volcano with potentially catastrophic power, a scientist said Friday.

Space & Earth / Earth Sciences

created May 29, 2009 | popularity 3.9 / 5 (17) | comments 12

The Earth's hidden weakness

(PhysOrg.com) -- Three thousand kilometres beneath our feet, the Earth's solid rock gives way to the swirling liquid iron of the outer core.

Space & Earth / Earth Sciences

created May 28, 2010 | popularity 4.3 / 5 (15) | comments 2 | with audio podcast

Australian scientists find Timor Sea meteorite crater

Australian scientists have discovered a crater deep beneath the Timor Sea made during a heavy meteor storm which may have altered the Earth's climate, the lead researcher said Thursday.

Space & Earth / Earth Sciences

created May 20, 2010 | popularity 4.3 / 5 (13) | comments 7 | with audio podcast

Expert: Wastewater well in Ohio triggered quakes

A northeast Ohio well used to dispose of wastewater from oil and gas drilling almost certainly caused a series of 11 minor quakes in the Youngstown area since last spring, a seismologist investigating the quakes said Monday.

Space & Earth / Earth Sciences

created Jan 03, 2012 | popularity 4.3 / 5 (13) | comments 18