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.

Six of the majors are named for the continents embedded within them, such as the North American ... These convergent boundaries also occur where a plate of ocean dives, in a process called ...

Until now, it was widely believed that Iceland formed around 60 million years ago when the mid-Atlantic ridge – the boundary between the North American and Eurasian tectonic plates – started ...

Plates can also move past each other, like at the San Andreas Fault in the USA, which forms the tectonic boundary between the Pacific Plate and the North American Plate. These are known as ...