at the walmart, she said they had just are finished up the shelves from the 6.4 quake that hit thursday and suddenly this one sit and many items knocked off the shelves again. >> a lot of people on edge there in southern california. i know we say that oftenen times, but many people spent the night sleeping outdoors fearing all those aftershocks. joe fryer and steve patterson, our thanks to you. with me now, jason baum, manager with the earthquake center. and thank you for being here with me. so there have been many, many aftershocks we believe that have taken place in southern california. many of them have been fairly strong already. >> that's right. thank you for bringing attention to the story. we're seeing that lot of people are taking good actions. they know how to protect themselves, they are cleaning up the spills and messes. but i want to make sure everyone learns to protect themselves because we are having a lot of aftershocks and i think everyone