POINTE-À-PITRE: A shallow magnitude-6.5 earthquake struck off the coast of the French overseas territory of Guadeloupe, US seismologists said, with no damages or injuries immediately reported by authorities.

The US Geological Survey said the epicentre of the quake hit around 160km east of the Caribbean island at a depth of 9km around 12.30pm.

Authorities issued a brief tsunami warning after the initial tremor, which was followed by several strong aftershocks.

AFP reporters said they felt the tremors in the French overseas territories of Guadeloupe and Martinique.

The Caribbean is an area of high seismic activity.

A devastating magnitude-7 earthquake hit Haiti in 2010, killing more than 200,000 people.