5.5 Earthquake - Antigua & Barbuda: North Atlantic Ocean

"A strong magnitude 5.5 earthquake occurred in the North Atlantic Ocean 555 km (345 mi) from Antigua and Barbuda in the early morning at 2.28 am local time (GMT -4). The quake had a very shallow depth of 5 km (3.1 mi) and was not felt (or at least not reported so)." VD