Most southerly exposed active volcano

The most southerly exposed active volcano is Mt Erebus at 3,794 m (12,447 ft) on Antarctica's Ross Island (77.5° S) in the Southern Ocean. It also has a near-permanent lava lake in its crater – one of only five known examples in the world.

At about 87° S, the most southerly exposed volcanoes are Mt Early and Sheridan Bluff, c. 300 km (186 mi) from the South Pole. Both are now extinct, estimated to have last erupted around 20 million years ago.

There are predicted to be more southerly subglacial volcanoes located under the ice but none of these have been physically accessed as yet so details of their precise location and activity levels are scant.