Below, the Big Brother house guests react to the frightening 5.4-magniture earthquake that shook Southern California Tuesday. Sweet. They probably thought it was CBS just screwing with them somehow - but no!

[youtube]http://www.youtube.com/watch?v=I-3UkxGU5h4[/youtube]

THE EARTH MOVED: And not just for April and Ollie this time.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.