With funding from the National Science Foundation, U.S. Geological Survey, and other sources, SCEC collaborates with academic, government, industry, and other organizations to: (1) Gather and analyze data from field observations and laboratory experiments. (2) Develop system-level models and simulations of earthquake processes to synthesize knowledge as a physics-based understanding of seismic hazard. (3) Communicate that understanding to expand knowledge and reduce earthquake risk.