“It shook my whole apartment for about 10 seconds,” said photographer Alan Markoff in the capital George Town.
Cayman Islands chief meteorologist John Tibbetts says the earthquake hit 50 kilometres south-east of Grand Cayman at 9:23 am local time.
“I have heard no reports of any damage in Grand Cayman. There have been no calls to 911 or Hazard Management. It appears to be just a shaking for us,” he said.
Some mobile phone systems were temporarily out of service but the quake had not caused major disruption, residents said.