Plate boundaries are where the action is. A large fraction of all earthquakes, volcanic eruptions, and mountain building occurs at plate boundaries. It is also where most of the people on Earth live.

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. If you've ever wondered where — and why — earthquakes happen the most, look no further than a new ...

Tremors beneath Northern California show hidden plate movement, helping scientists better understand where future big ...

Last Sunday, May 24, marked the 109th birthday of geologist Harry Hammond Hess, who discovered the primary mechanism of plate tectonics. That's the process through that determined how the shape of ...

It’s right there in the name: “plate tectonics.” Geology’s organizing theory hinges on plates—thin, interlocking pieces of Earth’s rocky skin. Plates’ movements explain earthquakes, volcanoes, ...