Subtitle San Andreas -

(on the west) is moving northwest relative to the North American Plate (on the east).

The San Andreas Fault is perhaps the most famous geological feature in the world, slicing through California like a jagged scar. For scientists, it is a laboratory for plate tectonics; for residents, it is a constant reminder of the "Big One." 1. A Masterpiece of Plate Tectonics subtitle San Andreas

California has invested billions in retrofitting bridges and older "soft-story" buildings to withstand lateral forces. (on the west) is moving northwest relative to

Major infrastructure, including the California Aqueduct and several interstate highways, crosses the fault. Engineers must use specialized "slip joints" and flexible materials to ensure these lifelines don't snap during a rupture. 4. Preparing for the "Big One" A Masterpiece of Plate Tectonics California has invested

The San Andreas has shaped California’s geography in striking ways.

Programs like ShakeAlert now provide precious seconds of warning to residents before the strongest shaking arrives.