Video shows buildings shaking the moment quake hit

Flagpoles, buildings and electrical lines can be seen swaying dangerously as tremors from a powerful magnitude 8.3 earthquake hit towns and cities in Chile.

At least five people have died in the quake - the worst to hit the South American country in five years.

In 2010, a magnitude 8.8 quake and ensuing tsunami in central Chile killed more than 500 people, destroyed 220,000 homes, and washed away docks and seaside resorts.

That quake released so much energy, it shortened the Earth's day by a fraction of a second by changing the planet's rotation.