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How do buildings cope?

Buildings in earthquake zones are designed to sway and absorb energy, rather than resist it rigidly. This 'ductility' allows them to deform without collapsing, much like a flexible tree bending in the wind. Modern building codes, often based on lessons from past quakes like Colombia's, mandate features such as reinforced concrete and base isolation to help structures withstand powerful tremors.

Questions this opens up

What is base isolation? How do building codes work? Can old buildings be reinforced?

Related explainers

What causes earthquakes? What are early warning systems? How are earthquakes measured? How fast do plates move? Why do plates move? What is the 'Ring of Fire'? How does soil type affect damage? Why are some quakes deadlier?

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