CERI, established in 1977 as the Tennessee Earthquake Information Center, is a Tennessee Board of Regents Center of Excellence at the University of Memphis devoted to understanding the causes and consequences of earthquakes and the structure and evolution of the continental lithosphere. CERI addresses these needs through cutting-edge research, comprehensive graduate student education, operation of state-of-the-art seismic and GPS networks, and dissemination of technical and practical information to the private and public sectors.

The PEER NGA database is an update and extension to the PEER Strong Motion Database, first published on this web site in 1999. The NGA database includes a larger set of records, more extensive meta-data, and some corrections to information in the original database. At this time, the NGA site contains only acceleration time history files. (The original site includes velocity, displacement, and response spectra.) See the PEER Lifelines program for more information on the NGA project.