An island located 1,600km southeast of Tasmania has been struck by a magnitude 6.9 earthquake.

The Bureau of Meteorology reported the earthquake near Macquarie Island in the Southern Pacific Ocean at 8:49pm on Thursday (AEDT).

The quake, which was revised from an initial magnitude of 7.4, had a depth of 10km, according to the United States Geological Survey (USCS).

There are no tsunami warnings in place for Australia.

Macquarie Island is located 1,600km southeast of Tasmania, about halfway between New Zealand and Antarctica.

It became a Tasmanian State Reserve in 1978 and was inscribed as a UNESCO World Heritage Site in 1997.