In our lifetime, and for many generations to come, San Diego and Southern California will reside near the San Andreas Fault system, which divides the North American tectonic plate from the Pacific ...

On Earth, the motion along faults is driven by plate tectonics ... along the San Andreas Fault. As the two segments of bedrock slide along each other, they force the river into a zig-zag pattern.

Pressure from a pool of magma has just cracked solid rock, creating a volcano-tectonic (VT) event. This type of quake produces relatively high-frequency shaking, usually between one and five ...

Geologists have long thought tectonic plates move because they are pulled ... They found a hot "river of rocks" being squeezed from the Pacific Ocean through a gateway under Central America ...