A strong, 6.0-magnitude earthquake struck in the Mediterranean Sea on Wednesday, according to the United States Geological Survey. The temblor happened at 1:51 a.m. Eastern European time about 14 miles southeast of Fry, Greece, data from the agency shows. U.S.G.S. data earlier reported that the magnitude was 6.1.

A preliminary 2.9 magnitude earthquake struck near Danville, according to the United States Geological Survey. The quake, which hit at 6:10 p.m., was centered in Alamo, the USGS said. Further information was not immediately available.

A powerful earthquake struck near the Greek island of Kasos early Wednesday, prompting tsunami warnings and widespread alerts across the southeastern Aegean.