Southern California hosts a number of active faults. Over the last 20 years, it has become the most seismically active area in the Western states, with magnitude 7 or greater events occurring around the (in)famous San Andreas fault. Join Yuri Fialko as he discusses what we know about earthquakes, and the slow tectonic deformation that causes them, using modern space technologies. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 19750]