The quake struck at 6:23 p.m. local time in the middle of the sea and had a depth of 10 kilometers, the USGS said.

An earthquake of 7.5 magnitude on Richter Scale jolted the Cayman Islands Region on Sunday, a statement by the National Center for Seismology said.The earthquake happened at a depth of 10km, making it susceptible to aftershocks.

USGS - NWS says ‘the tsunami threat has passed. Unusual currents may be noticed in some areas. Exercise normal caution.’