Local
- City of Claremont Police Department
- Los Angeles County Fire Department
- Claremont Red Cross
- Los Angeles Region Red Cross
- Los Angeles Times
- Inland Valley Daily Bulletin
Regional
- USGS – California Earthquakes
- The Great California Shake Out
- California Department of Public Health
- California Emergency Management Agency
- South Coast Air Quality Management District
- Earthquake Country Alliance
- The ShakeOut Scenario