‘The big one’. It’s what many people say when referring to what seems to be an imminent earthquake in the US. Leading earthquake scientists have issued a warning saying that people in Southern California should start preparing themselves for a massive earthquake that could hit anytime now. Scientists also say that California is long overdue for a major earthquake. Sounds scary, right? But how big are we talking here, and are there real reasons we should worry about? Well, watch this video to find out what could be the possible consequences and what precautious should people who live in the area take.