Learn about the movement of tectonic plates off the coast of northern California, a process that could incite major ...

A hidden chunk of an ancient tectonic plate is stuck to the Pacific Ocean floor and sliding under North America, complicating ...

You’ve seen politics and national borders change all the time, but have you ever witnessed a continent literally breaking ...

Earthquakes happen due to sudden movement of tectonic plates and stress release along fault lines beneath the Earth’s crust.

By tracking swarms of very small earthquakes, seismologists are getting a new picture of the complex region where the San ...