GPS data collected in the Dominican Republic from 1994 to 2001 show that oblique convergence between the North American and Caribbean plates is partitioned between 5.2 ¿ 2 mm.yr-1 of dip-slip reverse motion on the North Hispaniola thrust (approximately N-S), and 12.8 ¿ 2.5 mm.yr-1 and 9.0 ¿ 9.0 mm.yr-1 of approximately E-W left-lateral strike-slip motion on the Septentrional and Enriquillo faults (95% confidence). The agreement between GPS and paleoseimological slip rates on the Septentrional fault, together with the 770--960 years since the last major earthquake and the 800--1200 years maximum repeat time of major earthquakes, may indicate that the Septentrional fault is currently in the late phase of its rupture cycle.