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.
The epicenter was located about 1 060 km (660 miles) SW of Bluff and 1 225 km (761 miles) SW of Dunedin, New Zealand.
There are no people living within 100 km (62 miles).
The USGS issued a Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.