Southern California has the highest earthquake risk of any region in the U.S..
But exactly how risky and where the greatest risks lie remains an open question.
In June 2017, a team of researchers from the U.S. Geological Survey and the Southern California Earthquake Center (SCEC) released a major paper in Seismological Research Letters that summarized the scientific and hazard results of one of the world’s biggest and most well-known earthquake simulation projects: The Uniform California Earthquake Rupture Forecast (UCERF3).