In the early hours of 27 February 2010, a magnitude 8.8 megathrust earthquake struck off the coast of the Maule region in central Chile. It ranks among the six most powerful earthquakes ever recorded and released enormous energy along the boundary where the Nazca Plate dives beneath the South American Plate. The shaking was felt across a huge swath of the country, including the capital Santiago.
The earthquake and the tsunami it generated killed around 525 people and caused severe damage across several regions, with the tsunami striking coastal towns before full warnings could reach them. Despite the immense magnitude, the death toll was remarkably low for such a powerful event. Chile's strict, well-enforced seismic building codes are widely credited with saving many thousands of lives.
Chile sits on one of the most seismically active zones on Earth and had steadily strengthened its construction standards after earlier disasters, including the 1960 Valdivia earthquake — the strongest ever recorded. The 2010 event became a reference case demonstrating how rigorous engineering and code enforcement dramatically reduce mortality. Reconstruction and lessons learned further reinforced the country's building and warning systems.