California earthquake warning: 6.3 magnitude quake rocks US East Coast amid Big One fears A MASSIVE 6.3 magnitude earthquake has struck off the coast of California as the Ring of Fire continues to show signs of increased activity. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Trilobites: Why We ‘Hear’ Some Silent GIFsHow to Save Money on Your Prescription DrugsSupplements Claiming to Ease Opioid Addiction Come Under ScrutinyScientists close to developing nuclear fusion STAR with same energy as SUN to power homesWhy Is Fashion Having an Astral Moment?Revealed: Scientists uncover MYSTERY deep underwater sound that might be the hum of Earth