An earthquake hit eastern Romania early today, shaking the capital Bucharest, seismologists said, but there were no immediate reports of damage or casualties. <br/><br/>Romania's National Institute for Earth Physics put the quake at magnitude 5.2, while the US Geological Survey gave it a magnitude of 5.6. The epicentre was in the seismic region of Vrancea at a depth of 100 kilometres.<br/><br/>