A major, preliminary magnitude 7.5 earthquake struck in the South Atlantic Ocean late Thursday, the United States Geological Survey reported. The U.S. National Oceanic and Atmospheric Administration said there was no longer a threat of a tsunami after an earlier advisory by Chilean authorities for parts 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.

A powerful magnitude 7.5 earthquake struck in the Drake Passage, located between the southern tip of South America and Antarctica, the Pacific Tsunami Warning Centre reported Friday. The United States Geological Survey (USGS) said the quake,