See I give proof that this armchair armature is just an amateur
the Caribbean late had a fault slip this afternoon.
4.6 along the the boundary of the north American plate.
Quake Map
http://neic.usgs.gov/neis/bulletin/neic_thck_l.html
Plate Map
http://www.oas.org/pgdm/document/BITC/papers/gibbs/gibb0201.gif