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 (10 kilometers), according to the U.S. Geological Survey. The epicenter was located about 170 miles (270 kilometers) north-northeast of Antigua and Barbuda.
The earthquake was felt on several islands, including Puerto Rico. No damage was immediately reported.