Wait for one that shakes the ground for a couple of minutes or longer, then check your skyline again.
It has been an uncharacteristically active the past few weeks around Puerto Rico and the DR. 65 tremors in the last week alone. 5 in the Mona Passage, 2 in the DR itself.
165 in the same region in the past 30 days of 2.5 or greater magnitude. 6 in the DR and a bakers dozens off the east and SE coast of the island. The NNE section of the Caribbean Plate is rocking and rolling these days.