• Pacific Earthquake Engineering Research (PEER)
• Opensees
• NGA Motion Database
• Strong Motion Database
• PEER Report Series
• Earthquake Engineering Research Institute (EERI)
  • Learning From Earthquakes (LFE) Program
• Southern California Earthquake Center (SCEC)
  • Earthquake Catalogs and Seismic Data
• OpenSHA
• United States Geological Survey (USGS)
  • USGS- Geology
  • USGS- Pasadena Field Office
• Consortium of Organizations for Strong-Motion
  Observation Systems (COSMOS)
• Advanced National Seismic System (ANSS)
• CGS (California Geological Survey)  
  • Earthquakes Main Page
  • California Seismic Hazards Mapping Programs
• National Geophysical Data Center (NGDC)
  • Natural Hazards
• California Integrated Seismic Network (CISN)
• Southern California Seismic Network (SCSN)