A 7.5-magnitude earthquake struck the Drake Passage south of Chile and Argentina late Thursday, briefly prompting tsunami warnings before the threat subsided.

The epicenter of the 7.5-magnitude quake was in the Drake Passage, a body of water between the southernmost tip of South America and Antarctica.

A 5.7-magnitude earthquake was reported early Tuesday in the Drake Sea, with its epicenter located 249 kilometers south of Puerto Williams, in the Magallanes and Chilean Antarctic Region. Following the seismic event,