Wow, I live in an apartment on the 22nd floor on the Malecon in Santo Domingo and it was shaking like a jelly a few mins ago. Never felt a tremor like that before.
I'm starting to wonder, if this has to do with mining operations. Similar to the fracking in OK that causes these 4-5 range earthquakes. Seems to be quite a few lately and in the same area around Hato Mayor.