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.

Whatever drives the movement, plate tectonic activity takes place at four types of boundaries: divergent boundaries, where new crust is formed; convergent boundaries, where crust is consumed ...

When the plate sinks into the mantle it melts to form magma. The pressure of the magma builds up beneath the Earth's surface. The magma escapes through weaknesses in the rock and rises up through ...

The tiny Juan de Fuca plate is largely responsible for ... The movement of the plates creates three types of tectonic boundaries: convergent, where plates move into one another; divergent, where ...

At divergent boundaries, plates move away from each ... subduction zones may themselves be transformed to other types of plate boundary. For example, when India collided with Asia, an active ...

Where convection currents push plates together, destructive plate boundaries (margins) are formed. Constructive plate margins close constructive plate marginAn area where two tectonic plates are ...

Earthquakes can occur along faults far from the edges of plates. Although these earthquakes are much less common, they are due to the same forces that cause earthquakes along plate boundaries. Faults ...

You now have the power to change the landscape with the slightest push of your mouse. Four types of plate tectonic activity are demonstrated in this feature. Keep an eye on the map to see where in ...