The New Madrid Seismic Zone in the Midwest may be gearing up rather than slowing down, according to a study in the journal Science. Scientists have debated whether the seismic zone is dying out. "I don't agree that this area is dying out. It's not going to go off anytime soon, but we do have evidence that more stress is being built up now. Eventually, that energy will have to be released in a large earthquake," said geophysicist and lead author Morgan Page of the U.S. Geological Survey in Pasadena, Calif.