The United States Geological Survey reports a major, preliminary magnitude 7.5 earthquake struck in the South Atlantic Ocean

Earth Tremor in the Remote Southern Waters A powerful earthquake struck late on Thursday night in the remote waters of the Drake Passage, a stretch of ocean that lies between the southern tip of South America and the northern edge of Antarctica.

A significant 7.5-magnitude earthquake hit the South Atlantic Ocean's Drake Passage, leading Chilean authorities to issue a potential tsunami advisory for parts of Antarctica.