NEW: Aftershock! In nearly the exact place, we have had a 4.3 magnitude aftershock earthquake Tuesday evening in the Gulf. The Caribbean tectonic plate has become very active in Earth's crust with now 4 Earthquakes all within a few hour span of each other. The chances of another significant 6+ magnitude one close to Florida are only about 2% in the next few days, but we will watch to see what happens.