A moderate earthquake struck Monday in the northern Dominican Republic, but there were no reports of damage or injuries.

The U.S. Geological Survey says the earthquake had a preliminary magnitude of 5.1. The epicenter was in the coastal town of Rio San Juan, about 155 miles north of the capital and 22 miles northeast of San Francisco de Macoris.

A seismology institute at the Autonomous University of Santo Domingo said its equipment recorded a magnitude of 5.4.

Juan Manuel Mendez, director of the country's Emergency Operations Center, said emergency workers had fanned out in communities along the northern coast to check for damage or injuries but had so far found none.

Tremors were felt as far away as Cap Haitien in northern Haiti and along the west coast of Puerto Rico.