Scientists find seismic scars in Brzegi, Poland and warn that the actual risk from an unknown fault line is much greater than believed.
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The San Andreas Fault: Facts about the crack in California's crust that could unleash the 'Big One'
The San Andreas Fault is California's longest and most famous fault. At this fracture zone, two plates of Earth's crust move past each other. It stretches from the Salton Sea in Southern California to ...
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