Singapore, Dhu-AlQa'dah 02, 1439, July 15, 2018, SPA -- An earthquake measuring 6.2 on the Richter scale struck off Yemen on Sunday, the U.S. Geological Survey (USGS) reported, but there was no warning of immediate tsunami. The quake struck 213 km northwest of Socotra island in the Gulf of Aden, but no reports of any damage or casualties were reported. --SPA 16:00 LOCAL TIME 13:00 GMT 0017 www.spa.gov.sa/w717017