Why Haiti’s quake was so devastating
The green line south of Port-au-Prince shows the fault line where the 7.0-magnitude quake was centred. The epicentre was 10 kilometres beneath the surface. (U.S. Geological Survey) Tuesday’s earthquake in Haiti was especially destructive because its epicentre was close to a major city and its hypocentre, or focal point, was close to the Earth’s surface, says a Canadian…