Faults

A fault is a fracture in the Earth’s crust where the rock mass on either side has been displaced. Earthquakes occur on active fault lines.

Related articles

• Faults

• The Alpine Fault

• Squishy rocks and earthquakes

Related media

• Why study the Alpine Fault?

• From mountains to microscopes

Related activities

• New Zealand plate boundary models

• Earthquakes past and future

Acknowledgement: Dave Prior