Millions across the world participated in the Great ShakeOut Thursday, practicing earthquake preparedness. The world’s largest earthquake drill,  the Great ShakeOut, took place Thursday, Oct. 17, at 10:17 a.m., involving millions of participants and reminding those living in earthquake-prone areas of best practices. This drill is a time for all residents, businesses, schools, first responders, ... The post Santa Clarita Residents Prep For ‘The Big One’ With The Great ShakeOut appeared first on KHTS Radio.