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.

An earthquake of 7.5 magnitude struck the remote Drake Passage on Thursday, August 21, 2025, triggering a tsunami warning in parts of Antarctica that was later cancelled. The earthquake hit