Enriquillo

Some speculate that the 2010 quake contributed to the recent one by transferring stress towards the region that just ruptured — and that seismic risk remains high in Port-au-Prince and across much of the Enriquillo–Plantain Garden fault zone.

Both the 2010 and 2021 quakes happened in the Enriquillo–Plantain Garden fault zone, a tangle of fractures in Earth’s crust where the North American and Caribbean tectonic plates slide past one another.

In terms of future risk, the Enriquillo–Plantain Garden fault zone could still yield another major quake.

Lake Enriquillo and Lake Azuéi have always been anomalies.

If true, Lake Azuéi, with its higher elevation, may be slowly draining into Lake Enriquillo.