The U.S. Geological Survey says an earthquake with a preliminary magnitude of 5.7 has struck the Caribbean island of Puerto Rico. The quake hit at 1:16 a.m. (0516 GMT) four miles (six kilometers) from the small community of Espino on the western side of the island and 63 miles (101 kilometers) from the capital, San Juan. It was recorded at a depth of 68 miles (110 kilometers). There are no immediate reports of injuries or damage, the Associated Press reported.