(1) Susan Hough, (2) Kate Hutton, (1) U.S. Geological Survey, (2) Caltech (retired) On the 30th anniversary of the 17 January 1994 Northridge, California, earthquake, we present a retrospective overview of an earthquake that had an enormous, multi-faceted impact in the greater Los Angeles area. In this two-part seminar, retired Caltech seismologist Kate Hutton first discusses the response to the earthquake by the (then) Southern California Seismic Network, which found itself slammed by joint demands of data analysis and overwhelming media/public interest. In the second part, Susan Hough discusses how modern analysis and data products – the development of which was spurred by the earthquake – bring early characterizations of the sequence, including its near-field ground motions, into greater focus.