SAN JUAN, Puerto Rico — A 6.5 magnitude earthquake struck Monday in open waters in the Atlantic Ocean and was felt throughout the eastern Caribbean, officials said.

The quake occurred about 100 miles (160 kilometers) east of the French Caribbean island of Guadeloupe at a depth of six miles (10 kilometers), according to the U.S. Geological Survey.

The tremor was felt on islands as far apart as Antigua and St. Vincent and the Grenadines. No immediate damage was reported.

Shortly afterward, a second, 6.0 magnitude quake struck in the same area at a depth of 10 kilometers (six miles), USGS said.

No tsunami warning was issued.

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Suburban voters and midterms ... Oyster Bay proposed budget ... Jets vs. Dolphins preview  Credit: Newsday

Luxe apts. got tax break without affordable housing ... Suburban voters and midterms ... LI employs 90% of highest paid government employees ... County on hook for $70M for dangerous intersection

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