Earthquake strikes off western coast of Greece, USGS says

A magnitude-6.1 earthquake struck off the western coast of Greece early Monday, the U.S. Geological Survey reported.

The quake hit near the island of Cephalonia, roughly 300 kilometers (185 miles) west of Athens, at a depth of about 14 kilometers (9 miles), the USGS said.

There were no immediate reports of damage or casualties.