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.

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 ...

Using information from inside the rocks on Earth’s surface, my colleagues and I have reconstructed the plate tectonics of the planet over the last 1.8 billion years. It is the first time Earth’s ...

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, ...

Map - Pacific Plate tectonics (IMAGE) University of Toronto Caption The map highlights in yellow the zones of the Pacific Plate that are being pulled apart by the sinking tectonic plate along the ...

The King's Trough Complex is a several-hundred-kilometer-long, canyon-like system of trenches on the North Atlantic seafloor. Its formation was long thought to be the result of simple stretching of ...

In October 2006, aboard the R/V Beautemps-Beaupré, we mapped the AOC triple junction and the southern extremity of the OFZ using a Kongsberg-Simrad EM120 deep-water multibeam echo-sounder. Sea-bottom ...