An earthquake of 6.4 magnitude was detected in the Mediterranean Sea west of the island of Crete on Saturday, Oct 12, but there were no reports of casualties or damage, the Greek police and fire brigade said, according to Reuters.

The center of the quake, which struck at 1311 GMT, was 22.5 miles below the seabed 43 miles west of Chania on Crete, the U.S. Geological Survey said.

Greece is often rocked by earthquakes. Most cause no serious damage but a 5.9 magnitude quake in 1999 killed 143 people.

A magnitude-5.6 quake struck in the Mediterranean Sea south of Crete in June 2013 but no damage or casualties were reported.