SINGAPORE, June 29 (Reuters) - A magnitude 7.1 earthquake hit about 100 miles north-northwest of Visokoi Island in the South Sandwich Islands off South America, the U.S. Geological Survey said.
The quake's depth was measured at 9.1 miles deep.
The Pacific Tsunami Warning Center said that based on historical data the threat of a widespread destructive tsunami did not exist. (Editing by Matt Driskill)
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