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.

The King's Trough Complex is a several-hundred-kilometer-long, canyon-like system of trenches on the North Atlantic seafloor.

The solid ground that we all live on forms a thin crust around the Earth. It’s no more than 50km thick - and it’s just the upper part of the lithosphere. Below it is the upper mantle. It’s mostly ...

Investigating the causes and consequences of volcanoes and featuring case studies from the Canary Islands, The Democratic Republic of the Congo and Iceland. Below Earth’s surface, in the upper mantle, ...

A hidden shard of ancient crust has been detected where California’s San Andreas system collides with the Cascadia subduction zone, reshaping how I understand the tectonic engine of the West Coast.

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 ...

Scientists have identified a long-lost tectonic plate in the west Pacific Ocean. Called Pontus, the 'mega-plate' was once 15 million square miles, about a quarter the size of the Pacific Ocean today.