The AD 365 Crete earthquake was an undersea earthquake that occurred at about sunrise on 21 July 365 in the Eastern Mediterranean,[4] with an assumed epicentre near Crete.[5] Geologists today estimate the quake to have been 8 on the Richter Scale or higher,[4] causing widespread destruction in central and southern Greece, northern Libya, Egypt, Cyprus, and Sicily.[6] In Crete, nearly all towns were destroyed.[4]