The north of Virgin Islands swarm is continuing with a couple of 4s, and has been joined by a cluster of small quakes north of Puerto Rico.

This has been happening on and off for years with no major or great quakes, but it still would be a good idea to understand what is going on. Maybe someone or many are working on this, but I did not generally read the seismological literature unless it is for an area I am working on.

Chris