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The fault is invisible from the surface, but magnetic surveys from the air see it clearly, represented in the white line. | Courtesy of Mark G. Steltenpohl, Isidore Zietz, J. Wright Horton, Jr., and David L. Daniels
Tech

San Andreas-Like Fault Found in Eastern U.S.

The fault stretches from N.Y. to Alabama and could cause an earthquake with the right mix of ingredients.

May 28, 2010
3:00 AM EDT