Tsunami threat after 7.8-magnitude earthquake strikes off the Americas
Magnitude 7.8 earthquake struck the Drake Passage near Chile, depth nine miles; tsunami threat issued for Chile, epicenter 135 miles south of Puerto Williams.
7.5-magnitude earthquake hits Drake Passage off South America
A preliminary magnitude 7.5 earthquake struck the Drake Passage in the South Atlantic off southern Argentina, prompting a Chilean tsunami advisory for parts of Antarctica.
