Synopsis
Iain Stewart investigates the Cascadian Fault Line and explains what causes super-thrust earthquakes.
Similar broadcast resources

Geography: Mountains and Volcanoes | Bitesize Daily: 9-11 Year Olds
Learn about volcanoes, mountains, and living near an active volcano.

Types of volcano | Fierce Earth
Dougal demonstrates different types of lava flow, particularly if the volcano is covered in rock and can add pressure and erupt.