A 3.9 magnitude earthquake struck Appin, on Tharawal land 70km South-West of Sydney, at 1:13am this morning.
The quake only lasted 0.87 seconds, but could be felt by people up to 51km away.
— EarthquakesGA (@EarthquakesGA) January 3, 2017
The Geoscience Australia website reports there was no damaged caused.
This is the biggest earthquake within a 50km radius since February 2002, when Lake Avon was struck by a 3.9 magnitude. The biggest ever recorded for the region was in Bowral in May 1961, and clocked in at 5.8 magnitude.
Gizmodo has contacted Geoscience Australia for further details, and we will update shortly.
An earthquake near Sydney has shaken the city's south west suburbs. The 3.9 magnitude quake struck at Appin, south of Campbelltown. pic.twitter.com/oDDNPjm3Pm
— Sunrise (@sunriseon7) January 3, 2017