A 7.5 magnitude earthquake struck off the southern tip of South America, in the Drake Passage, the U.S. Geological Survey (USGS) reports, striking at the shallow depth of 10 kilometers. Chile has also issued a tsunami threat advisory.

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.