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American Heartland At High Risk For Sizable Earthquakes
2013-09-30 14:15:26

[ Watch the Video: Earthquake Risks In America's Heartland ] Lawrence LeBlond for redOrbit.com - Your Universe Online An earthquake zone that extends from Marked Tree, Arkansas to Paducah, Kentucky and as far south as Memphis, Tennessee has a higher earthquake risk than adjacent areas within the United States, according to new research from the US Geological Survey (USGS). Using sophisticated technology, USGS scientists have developed new high-resolution images of the New Madrid...

Arizona Earthquakes Not As Rare As Once Thought
2012-08-15 08:40:27

April Flowers for redOrbit.com - Your Universe Online Earthquakes are a scary phenomenon. They are enormously destructive and much more common than you might think. Several million earthquakes are estimated to occur worldwide each year. Most are too small to feel, but they can be measured by arrays of seismometers. Some are so large they claim hundreds of thousands of lives (Shaanxi China, 1556, claimed 830,000 lives) while some create massive economic hardship (San Francisco, USA,...

Image 1 - First EarthScope 'Transportable Array' Seismic Station Reaches US East Coast
2012-02-18 04:35:13

Data generate 3-D 'CT scan' of North American continent's interior Yulee, Florida. Not a place one usually thinks of as an Earthquake Epicenter. But this swampland not far from the Georgia state line is now home to a state-of-the-art seismic station known as 457A. Here, within a few miles of the Atlantic Ocean, 457A has been installed to record ground motion from earthquakes. Earthquakes do happen on the East Coast of the United States, as the Virginia quake of August, 2011 attests....

Southern California's Tectonic Plates Revealed In Detail
2011-10-07 03:52:56

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 far different place. Yet because rifting involves areas deep below the Earth's surface, scientists have been unable to understand fully how it occurs. What is known is that with rifting, the center of the action lies in the lithosphere, which makes up the tectonic plates and includes the crust...

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2011-05-10 09:38:23

Primary coordination point for EarthScope science, education and outreach activities The National Science Foundation (NSF) has awarded $2.4 million to Arizona State University (ASU) to serve as the next host for the EarthScope National Office. The national office fosters and supports integrated science, education and outreach, and related activities for EarthScope scientists. EarthScope is an NSF-funded Earth science program that explores the four-dimensional structure of the North American...

2011-04-29 11:55:36

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 of its lower crust appear to be falling. The massive, tectonically stable region of the western United States has long puzzled geologists. A paper published today in the journal Nature shows how magmatic material from the depths slowly rises to invade the lithosphere -- Earth's crust and...

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2011-04-01 15:20:01

First such station installed northwest of Columbia, Mississippi Most seismic activity--and earthquakes--have been in the U.S. West. But the East is not out of the woods in terms of risk, geologists say. After a six-year march eastward from the U.S. West Coast, the EarthScope Transportable Array seismic network has reached a major milestone: installation of the first Transportable Array station east of the Mississippi River. Station 345A, located on a private farm about 15 miles northwest of...

2005-08-06 15:13:48

The San Andreas Fault Observatory at Depth (SAFOD) reached a significant goal on Aug. 2 when scientists drilled into a seismically active section of the fault approximately two miles below the surface of the Earth. "This is a milestone for SAFOD," says Mark Zoback, a professor of geophysics at Stanford University. "For the first time, scientists have drilled directly into the San Andreas Fault Zone at a depth that will allow us to observe earthquakes up close for decades to come." Zoback is...


Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.