A 7.5 magnitude earthquake rattled the Chilean Antarctic region and the southern Drake Passage on Thursday, the US Geological Survey said.

A strong earthquake with a revised magnitude of 7.5 struck the Drake Passage on Thursday, shaking the remote region between South America and Antarcti.

There was no tsunami threat after Thursday's earthquake of magnitude 7.5 in the Drake Passage between South America and Antarctica, the Pacific Tsunami Warning Center said, following its brief warning for Chilean coastal areas.