August 24, 2014 6:54 am INTERVIEW: USGS Discusses 6.0 Quake David Schwartz of the USGS talks with NBC Bay Area’s Sam Brock about Sunday’s 6.0 quake. US & World Videos 0:35 Blue blobs washing up on San Diego beaches again 2:52 Poway Unified fires superintendent following investigation into bullying claims 0:34 5 people injured after falling from border fence 0:53 San Diego City Council Committee approves San Diego's next police chief 2:29 Family mourns 13-year-old killed in Escondido crash