Ken, when the ground does start a shaking it is the older folks that seem to have a steady stride and the wits to handle it. Don't knock em.
HB, could be someone using explosives for rock and boulder clearing in your area. Meanwhile, a check of the USGS website shows no activity near Santiago or the island as a whole for today, Thursday. The recorded seismic activity has been surrounding the Canal de Mona. The most recent were yesterday and were of no significance that would affect the Cibao area.
Regards,
PJT