ATHENS, Greece (AP) " The U.S. Geological survey reports that an earthquake of magnitude 5.1 has struck northern Albania.

There were no immediate reports of casualties or damage.

The tremor occurred at 5:38 p.m. (1538 GMT) Saturday, some 38 kilometers (24 miles) northeast of Tirana, the capital. The epicenter of the quake was estimated at a depth of 10 kilometers (6.2 miles) according to a USGS preliminary report.