This application was built using strong-motion data from the Center for Engineering Strong-Motion Data (CESMD), a cooperative project of the California Geological Survey and the U.S. Geological Survey. The networks or agencies providing the data are the California Strong Motion Instrumentation Program (CSMIP) and the USGS National Strong Motion Project (NSMP).
The interactive maps in this application use Leaflet and OpenStreetMap. ShakeMap data is provided by the California Integrated Seismic Network (CISN) and the USGS Earthquake Hazards Program.