A rare earthquake hit the east coast of the United States on Tuesday.
The 5.8-quake was one of the strongest ever recorded in the region. There were no immediate reports of deaths although there were some injuries.
The epicentre was about 64 kilometres north-west of Richmond, Virginia in the small town of Mineral. In Washington, frightened office workers spilled out onto the streets.
Even the centre of US political power, the White House was shaken by the quake.