A fisherman in Trinidad and Tobago filmed the moment a powerful earthquake struck the island on Tuesday (August 21).

The footage, captured at a harbour by Caroni swamp, shows boats and a pick-up truck shaking as people stand on a road nearby, waiting for the tremor to finish.

The fisherman writes: ''We do fishing tours and I had just come out.

''I noticed a small shake and then the bigger quake happened.''