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Explained in plain English

What is a subduction zone?

A subduction zone is where two of Earth's tectonic plates collide, and one slides beneath the other into the mantle. This immense friction and pressure can cause powerful earthquakes, like the one in Colombia, and often leads to volcanic activity. It's a key feature of the 'Ring of Fire'.

Questions this opens up

What are tectonic plates? Why do plates move? What causes volcanoes?

Related explainers

How do building codes work? How do buildings cope? What causes earthquakes? What are early warning systems? How are earthquakes measured? How fast do plates move? What is the 'Ring of Fire'? How does soil type affect damage?

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