Scientists to place new earthquake monitors in Ga.



"It will help us to understand where the earthquakes are, where the faults are and generally get a clearer picture," said Bob Woodward, director of USArray, a national project between multiple universities and government agencies to monitor and map the earth's movements. "You bring the whole structure of the continent into much clearer focus."


"We will get some unprecedented high-resolution images," said Lara Wagner, assistant professor of seismology and tectonics at the University of North Carolina at Chapel Hill. "It's real science in the sense that we're seeing things that nobody has seen before."

Wagner is part of a team of scientists working on a project in Georgia that's related to the broader efforts of USArray, and uses some of the project's equipment.


About half of the Georgia instruments are already in place, and the other half will be installed in May, Wagner said. They're expected to continuously monitor the Earth's movements until May 2014.


"We don't really understand how continents form and how they break apart, and in particular where they decide to break apart when they do and how stable those old structures are," she said.

In Georgia and other states, knowledge of earthquakes is far more limited than in the western U.S. In California, for instance, the reasons for Earth's upheavals are far more obvious because of a well-known plate boundary, Woodward said.

"We have a very poor understanding of what causes East Coast earthquakes," Wagner said.

"We can't even begin to understand what's causing earthquakes on the East Coast until we know what's down there," she added. "The very basic science is lacking — we just don't know how the crust of the East Coast is put together."

Other researchers working in Georgia include Brown University seismologist Karen Fischer and Rob Hawman, an associate professor in the University of Georgia's geology department. Their project is known as S.E.S.A.M.E., an acronym for the Southeastern Suture of the Appalachian Margin Experiment.




"The question now is, is that area reloading for another one?," Woodward said.

"Scientifically it's quite an interesting debate," he said. "I'm certainly hopeful that all the instruments may shed some light on it."

Scientists to place new earthquake monitors in Ga. - By