The tiny Juan de Fuca plate is largely responsible for ... interplay where the plates meet or divide. The movement of the plates creates three types of tectonic boundaries: convergent, where ...

Earthquakes. A short video for 11-14 year old pupils, exploring tectonic activity and earthquakes and featuring case studies ...

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 ...

In this type of fault, the block of rock above the fault plane, known as the hanging wall, moves downward relative to the block below, called the footwall. Normal faults are typically found at ...

The different types of movement that are permitted at each joint are described below. Flexion – bending a joint. This occurs when the angle of a joint decreases. For example, the elbow flexes ...

Four types of plate tectonic activity are demonstrated ... then release the tension with a spurt of movement. This movement is felt as an earthquake. For more information, go to Slippin' and ...