Earlier this month, California was rocked by a powerful 7.1 magnitude earthquake, the biggest quake to hit the state in 20 years. California subsequently experienced further quakes and shocks in the aftermath. Why have so many earthquakes rocked California? And are we at risk for an earthquake here in Western New England? Carolee McGrath sat down with Steven Dunn, a Professor of Geology at Mount Holyoke College, for a closer look at the California earthquakes.