The massive ball of iron sitting at the center of Earth is not quite as "rock-solid" as has been thought, say two Stanford mineral physicists. By conducting experiments that simulate the immense pressures deep in the planet's ...
May 17, 2013
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(Phys.org) —How powerful was February's meteor that crashed into Russia? Strong enough that its explosive entry into our atmosphere was detected almost 6,000 miles away in Lilburn, Ga., by infrasound sensors – a full ...
May 03, 2013
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Scientists have determined the temperature near the Earth's centre to be 6000 degrees Celsius, 1000 degrees hotter than in a previous experiment run 20 years ago. These measurements confirm geophysical models ...
Apr 25, 2013
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The entire world becomes an aftershock zone after a massive magnitude (M) 7 or larger earthquake—but what hazard does this pose around the planet? Researchers are working to extend their earthquake risk estimates over a ...
Apr 19, 2013
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When superstorm Sandy turned and took aim at New York City and Long Island last October, ocean waves hitting each other and the shore rattled the seafloor and much of the United States – shaking detected ...
Apr 18, 2013
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The colossal earthquake that sent a devastating tsunami barreling into Japan two years ago on Monday was so big it could be heard from space, a study has said.
Mar 11, 2013
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(Phys.org) —A network of seismographic stations recorded spectacular signals from the blast waves of the meteor that landed near Chelyabinsk, Russia, as the waves crossed the United States.
Mar 05, 2013
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The stunning burning-up of a meteor over Russia on Friday that unleashed a shockwave injuring hundreds of people appears to be the country's most dramatic cosmic experience since the historic Tunguska Event ...
Feb 15, 2013
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A nuclear test explosion set off last night by North Korea was far larger—perhaps by three or four times—than the country's last known blast, say seismologists who have examined seismic waves coming from ...
Feb 13, 2013
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(Phys.org)—When an earthquake strikes, damage to buildings such as nuclear power stations can worsen the catastrophe. Researchers from France's Institut Fresnel and the French division of Menard, a ground-improvement ...
Feb 12, 2013
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Under the auspices of the Comprehensive Nuclear-Test-Ban Treaty Organization, a worldwide monitoring system designed to detect the illegal testing of nuclear weaponry has been under construction since 1999. The International ...
Feb 11, 2013
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North Korea has vowed to carry out a third nuclear test, but scientists and concerned foreign governments may have a tough time verifying the actions of the reclusive state.
Feb 07, 2013
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A University of Utah seismologist analyzed seismic waves that bombarded Earth's core, and believes he got a look at the earliest roots of Earth's most cataclysmic kind of volcanic eruption. But don't worry. ...
Feb 07, 2013
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(Phys.org)—Hidden beneath ocean waves and masked by sand and mud on the seafloor, underwater faults are notoriously difficult to see and even more difficult to study. As a result, geologists struggle to ...
Jan 31, 2013
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Seismic studies are helping scientists learn more about the structure of subducting oceanic plates.
Jan 29, 2013
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