Cosmin Evrything on Instagram: "San Andreas Fault: America’s Most Dangerous Geological Time Bomb Beneath California The San Andreas Fault stretches over 745 miles across California and is considered one of the most dangerous fault lines on Earth. Scientists warn that massive tectonic pressure continues to build beneath the surface, raising fears of a future “Big One” earthquake. This fault has already caused devastating quakes in the past, and experts believe it’s only a matter of time before it