What's Hiding Beneath America’s Most Dangerous Fault SHOCKED Scientists

Something beneath California is moving — but not in just one place, and not in just one way.

In this DiscoverTube investigation, we explore slow-slip events along the San Andreas Fault, deep low-frequency earthquakes, Long Valley Caldera shifting from uplift to subsidence, crustal stretching near the Salton Sea, complex fault networks revealed by Ridgecrest, and evidence that part of the ancient Farallon Plate may still survive beneath Northern California.

Satellites, GPS, seismometers and artificial intelligence are now detecting movements that were almost invisible only a few years ago.

California is not sitting on a static foundation.

Scientists are watching it change in real time.

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