New technology shows old faults are smoother than young ones

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The LIDAR instrument (foreground) scans an exposed fault measuring its topography in great detail. Photo by A. Sagy
The LIDAR instrument (foreground) scans an exposed fault, measuring its topography in great detail. Photo by A. Sagy

Old earthquake faults appear to be smoother than young ones, worn smooth over time by friction like the brake pads of an old car.


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