Энрикильо
Lake Enriquillo is located within a linear depression that formed as a ramp basin between the Haiti fold and thrust belt to the north and the uplifted oceanic crust of the Massif de la Selle and Sierra de Bahoruco mountain ranges to the south. The Enriquillo-Plantain Garden fault is a later strike-slip fault, cutting across the depression, which extends from Jamaica in the west, to near Neiba in the Dominican Republic in the east. The valley, a former marine strait, was created around one million years ago when the water level fell and the strait was filled in by sediments of the Yaque del Sur River. Tremors in the region are common.