The lands between the south of Mexico and north edge of Columbia will not fare well during the coming pole shift, due to several factors, all of which are essentially fatal to those living there. First, this fragile land mass separates two oceans, which will be heaving to and fro. The water will wash over and nearly wash away the land due to this. Second, the plates under this land are small and will not hold up well under pressure from nearby larger plates, thus will be subducted or fractured. Third, as the Atlantic widens, the Americas will pull apart, leaving the small plates without their normal supports so that they will sink.
Note 7 of 10 Plate Movement commentary.
Note Central America Crumble commentary.
Note Caribbean 7 of 10 commentary.