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:Findings: The Perfect Gift? It’s the One They Asked ForAn (Edible) Solution to Extend Produce’s Shelf LifeHordes of Geese Die on a Toxic Lake in MontanaRise of the MACHINE: Robots can now feel TOUCH like humansHumanity is DOOMED if asteroid is on collision course with 'unprepared' Earth, warns NasaWATCH LIVE: Geminids meteor shower reaches peak in astonishing sight