The Los Angeles region is underlain by a network of active faults, including many that are deep and do not break the
Earth’s surface. These hidden faults include the previously
unknown one responsible for the devastating January 1994
Northridge earthquake, the costliest quake in U.S. history. So that structures can be built or strengthened to withstand the quakes that are certain in the
future, the Los Angeles Region Seismic Experiment (LARSE) is
locating hidden earthquake hazards beneath the region to
help scientists determine where the strongest shaking will occur