A 4.4-magnitude earthquake has hit south of the island of Crete, Greece, according to a preliminary reading by the Athens Geodynamic Institute. The tremor struck at 6:18 p.m. local time on Thursday, with the epicenter at 5km (3.1 miles) below sea level. There are no reported casualties but the quake was strong enough to worry locals. Earthquakes have historically caused widespread damage across central and southern Greece, Cyprus, Sicily and other neighboring regions. In January 2014, a series of strong earthquakes on the island of Kefalonia damaged hundreds of homes and injured more than a dozen people.