SINGAPORE, Shawwal 07, 1435, August 03, 2014, SPA -- A magnitude 6.0 earthquake struck off the coast of Japan's Okinawa island on Sunday, according to the Pacific Tsunami Warning Centre, Reuters reported. The quake struck at a depth of about 6.2 miles, 125 miles north-northeast of Okinawa's capital city of Naha. No tsunami warning was issued. --SPA 11:44 LOCAL TIME 08:44 GMT www.spa.gov.sa/w