What seismologists are learning from this weekend's California earthquakes
Residents in Southern California are bracing for more possible earthquakes in the wake of last week’s temblors. There have been more than 4,000 aftershocks since last week’s 7.1 and 6.4 magnitude quakes near Ridgecrest. Chief weathercaster Lonnie Quinn of New York station WCBS-TV joins “CBS This Morning” to show us what seismologists are learning about these earthquakes, and how they may affect the rest of California.