A completed research study by Jonathan P. Stewart and Annie O.L. Kwak that evaluated various nonlinear site response codes and developed guidance for input parameter selection and code usage protocols.

A research and implementation partnership with a mission to develop, disseminate, and promote knowledge, tools, and practices for earthquake risk reduction through coordinated, multidisciplinary, interagency partnerships among the NEHRP agencies and their stakeholders that improve the Nation’s earthquake resilience in public safety, economic strength, and national security.

As an unbiased, multi-disciplinary science organization that focuses on biology, geography, geology, geospatial information, and water, the USGS are dedicated to the timely, relevant, and impartial study of the landscape, our natural resources, and the natural hazards that threaten us.

NEES, the George E. Brown, Jr. Network for Earthquake Engineering Simulation, is a National Science Foundation sponsored consortium of 15 experimental facilities working toward engineering solutions to minimize damage to structures and loss of life from earthquakes. NEES revolutionizes earthquake engineering research by the creation of a national network of experimental facilities with shared collaborative tools allowing remote participation and observation, a centralized data repository opening the exchange of data and information, and earthquake simulation software linking simulation with experimentation. These resources are part of the cyberinfrastructure linked by ultra-high-speed NEESgrid connections. Together, they provide collaboration and discovery in the form of more advanced research based on experimentation and computational simulations of the ways buildings, bridges, utility systems, coastal regions, and geomaterials perform during seismic events.

The nees@UCDavis large geotechnical centrifuge is one of the largest in the world in terms of radius (9.1 m to bucket floor), maximum payload mass (4500 kg), and available bucket area (4.0 m2). The centrifuge is capable of producing 75g's of centrifugal acceleration at its effective radius of 8.5m. The centrifuge capacity in terms of the maximum acceleration multiplied by the maximum payload is 53 g x 4500 kg = 240 g - tonnes.

The National Science Foundation (NSF) is an independent federal agency created by Congress in 1950 "to promote the progress of science; to advance the national health, prosperity, and welfare; to secure the national defense…" With an annual budget of about $6.06 billion, we are the funding source for approximately 20 percent of all federally supported basic research conducted by America's colleges and universities. In many fields such as mathematics, computer science and the social sciences, NSF is the major source of federal backing.