For millions of years, Earth’s shifting plates have shaped continents, formed oceans, and built towering mountain ranges. But ...

Or the crust can crack open enough to let melted rock from the next layer of Earth, the mantle, rise to the surface. One place this happens is at the boundaries of tectonic plates, which are the ...

South Carolina has high seismic activity despite not being on a plate boundary. Scientists still don't know the answer for ...

Earthquakes occur when the rock on one side of a fault slips relative to the other. The fault surface can be vertical, ...

A breakthrough study has provided the most detailed 3D look yet at the inner workings of the Tonga Subduction Zone, where ...