ATHENS, Greece (AP) — A strong earthquake, of 4.6 magnitude, has hit the western Greek island of Kephalonia. No damage has been reported.

The tremor occurred at 9:31 a.m. Saturday at sea, west of the island, 25 kilometers (16 miles) below the sea surface, some 300 kilometers west of the capital Athens, the Institute of Geodynamics at Athens University reports.