The earthquake that struck near the Haitian capital, Port-au-Prince, on 12 January 2010, was unremarkable in seismic terms — barely making the year’s top 20 most powerful quakes. But it was one of the most deadly seismic events in the past four decades, serving as a reminder that the scope of these disasters is defined not by the scale of the Earth’s unleashed fury, but by overcrowding in poor urban areas and lax or poorly enforced building codes.
In the graphic below, use the control buttons to explore an animation of major quakes in 2010; click on the tab at top left to put the Haiti earthquake and its toll in historical context.