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Archive – February 2015

The ground beneath our feet seems still, yet, this is an illusion. Abundant seismic data, new mathematical analyses, and powerful supercomputers are yielding a detailed look beneath the ground, into Earth’s mantle. Earth’s tectonic plates migrate across the surface at an average rate of 2 to 4 centimeters a year. Having a visual image adds an entire new dimension to seismic understanding.