(Reuters) - A magnitude 7.1 quake struck on Monday in the southern Atlantic Ocean, close to the South Sandwich Islands north of Antarctica, the U.S. Geological Survey said.
The quake, initially reported as a magnitude 7.5, was in a remote area and fairly deep underground.
The U.S. Pacific Tsunami Warning Center said in an advisory that it did not cause a tsunami threat.
(The story corrects name of the ocean in first paragraph)
Reporting by Sandra Maler in Washington; Editing by Peter Cooney