The east of the county was hit by tremors just before 3am.
The epicentre was said to be two miles west of Ramsgate, with the tremors felt as far as Canvey Island, Essex.
Local resident Simon Moores told Express.co.uk: “At just after 3am there was a dramatic violent jarring and jolting of the house for about 10 seconds.
“The seagulls launched into air with tremendous noise outside, dogs started barking, crockery moving, furniture jarring about a bit.”
“It stopped after 10 seconds, which made me think it was probably an earthquake.