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News About Tectonic Forces
February 21, 2012
Big quakes no more likely than in past: study
Washington (AFP) Dec 19, 2011
Massive earthquakes are no more likely today than they were a century ago, despite an apparent rise of the devastating temblors in recent years, US researchers said on Monday. The deadly 9.0 earthquake this year in Japan, an 8.8 quake in Chile last year and the 2004 Sumatra-Andaman earthquake that registered 9.0 on the moment magnitude scale have raised alarm in some science and media circles that such events may be linked. But researchers at the University of California went back over the world ... read more

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Ozone From Rock Fracture Could Serve As Earthquake Early Warning
Researchers the world over are seeking reliable ways to predict earthquakes, focusing on identifying seismic precursors that, if detected early enough, could serve as early warnings. New resea ... more
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Ozone From Rock Fracture Could Serve As Earthquake Early Warning
Researchers the world over are seeking reliable ways to predict earthquakes, focusing on identifying seismic precursors that, if detected early enough, could serve as early warnings. New research, p ... more
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Taiwan deploys undersea quake warning system
Taiwan said Monday it had put into service its first undersea seismic observation system, giving the island life-saving extra seconds or even minutes to brace for earthquakes and tsunamis. ... more
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Purdue leads national earthquake program blanketing Indiana with seismic stations
Seismic equipment is being installed throughout Indiana as part of a national program to better understand how and why earthquakes and volcanic events occur, and Purdue University professors and stu ... more
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Turkey, a country at seismic crossroads
The 7.2-magnitude earthquake that struck Van province in eastern Turkey on Sunday, causing hundreds of fatalities, underscores the country's fate to be straddling one of the world's most active seismic zones. ... more
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Southern California's tectonic plates revealed in detail
Rifting is one of the fundamental geological forces that have shaped our planet. Were it not for the stretching of continents and the oceans that filled those newly created basins, Earth would be a ... more
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Deep recycling in the Earth faster than thought
The recycling of the Earth's crust in volcanoes happens much faster than scientists have previously assumed. Rock of the oceanic crust, which sinks deep into the earth due to the movement of tectoni ... more
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Ancient rock under Haiti came from 1,000+ miles away
Earthquakes and volcanoes are known for their ability to transform Earth's surface, but new research in the Caribbean has found they can also move ancient Earth rock foundations more than 1,000 mile ... more
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Scripps researchers discover new force driving Earth's tectonic plates
Bringing fresh insight into long-standing debates about how powerful geological forces shape the planet, from earthquake ruptures to mountain formations, scientists at Scripps Institution of Oceanog ... more
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Capturing the Boundary Between Magma and Water
Integrated Ocean Drilling Program (IODP) Expedition 335 Superfast Spreading Rate Crust 4 recently completed operations in Ocean Drilling Program (ODP) Hole 1256D, a deep scientific borehole that ext ... more
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Hawaiian hotspot variability attributed to small-scale convection
Small scale convection at the base of the Pacific plate has been simulated in a model of mantle plume dynamics, enabling reasearchers to explain the complex set of observations at the Hawaiian hotsp ... more
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Scientists Study Earthquake Triggers in Pacific Ocean
New samples of rock and sediment from the depths of the eastern Pacific Ocean may help explain the cause of large, destructive earthquakes similar to the Tohoku Earthquake that struck Japan in mid-M ... more
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Flooding of ancient Salton Sea linked to San Andreas earthquakes
Southern California's Salton Sea, once a large natural lake fed by the Colorado River, may play an important role in the earthquake cycle of the southern San Andreas Fault and may have triggered lar ... more
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Japan's mega-quake struck in small zone of fault: study
The deadly 9.0-magnitude quake that struck off northeastern Japan on March 11 ruptured a relatively small part of a notorious fault that straddles the Pacific seabed, Japanese scientists reported on Wednesday. ... more
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Japan Earthquake Appears to Increase Quake Risk Elsewhere in the Country
Japan's recent magnitude 9.0 earthquake, which triggered a devastating tsunami, relieved stress along part of the quake fault but also has contributed to the build up of stress in other areas, putti ... more
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Unusual earthquake gave Japan tsunami extra punch
The magnitude 9 earthquake and resulting tsunami that struck Japan on March 11 were like a one-two punch - first violently shaking, then swamping the islands - causing tens of thousands of deaths an ... more
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Time to shift view of seismic risk - experts
Knowledge of seismic risk is badly skewed in favour of earthquakes that occur on plate boundaries, such as the March 11 temblor that hit northeast Japan, rather than those that strike deep inland, a pair of scientists said on Sunday. ... more
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Does the central Andean backarc have the potential for a great earthquake?
The region east of the central Andes Mountains has the potential for larger scale earthquakes than previously expected, according to a new study posted online in Nature Geoscience. Previous research ... more
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Caves and their dripstones tell us about the uplift of mountains
In one of his songs Bob Dylan asks "How many years can a mountain exist before it is washed to the sea?", and thus poses an intriguing geological question for which an accurate answer is not easily ... more
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Rice University geologist leads team effort to solve mystery of the Colorado Plateau
A team of scientists led by Rice University has figured out why the Colorado Plateau - a 130,000-square-mile region that straddles Colorado, Utah, Arizona and New Mexico - is rising even while parts ... more
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Scientists to study Tonga Trench
Scientists say they're planning an expedition to study one of the most seismically active fault lines in the world beneath the South Pacific. ... more
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Climate can drive seismic shifts: study
Scientists have for the first time shown a link between intensifying climate events and tectonic plate movement in findings that could provide a valuable insight into why huge tremors occur. ... more
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Japan's seismologists blinded to March 11 quake: journal
Japan's seismologists were so entrenched in outdated beliefs about seismic hazard that they became blinkered to the risk of the March 11 mega-quake, a commentary in a top science journal charged on Wednesday. ... more
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Scientists describe 'yo-yo' Earth movement
Australian researchers, with European colleagues, have confirmed a formerly purely theoretical geologic phenomenon and have given it a name - yo-yo subduction. ... more
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