The US Geological Survey reported an earthquake struck around 633.8 miles northwest of the western Australian city of Perth.
Тhe centre of the seismic activity was located at a depth of about 20 miles, Sputnik reports according to the USGS.
There were no immediate reports of casualties or damages.
According to the Richter scale, earthquakes with a magnitude of 6.0-6.9 are considered strong and can cause moderate damage to even earthquake-resistant structures.