Southern California could be hit by 30,000 more earthquakes

Southern California, reeling from two of the biggest earthquakes in two decades, could be hit by a staggering 30,000 aftershock quakes by the end of the year, experts warn. The 6.4-magnitude quake on Thursday followed by the even bigger 7.1-magnitude one the next day, both in the Mojave Desert, have already put California on edge,...