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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).

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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.