A 6.6 magnitude earthquake struck Monday in the Atlantic Ocean near the northern Caribbean, causing some buildings to lightly sway in the region.

The quake struck at a shallow depth of six miles, according to the U.S. Geological Survey. The epicenter was located about 170 miles north-northeast of Antigua and Barbuda.

MAGNITUDE 7.1 EARTHQUAKE HITS REMOTE PACIFIC, NO TSUNAMI THREAT

The earthquake was felt on several islands, including Puerto Rico. No damage was immediately reported.