The Southern California Earthquake Center (SCEC) launched the Earthquake Response Content Management System (ERCMS) to facilitate earthquake response coordination between SCEC institutions and its agency partners. The website enables users to create, edit, review, search, and archive various kinds of information relating to significant earthquake activity. The SCEC ERCMS is designed to be a virtual meeting place for SCEC scientists to gather and share information and coordinate activities in a post-earthquake environment. It can be used as a living document for the SCEC response coordination plan. The website is hosted at the University of Southern California, with backup mirror sites residing at two other facilities: the Southern California Earthquake Data Center (SCEDC) at Caltech and Stanford University.