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Did You Feel It?
This site provides access to Community Internet Intensity Maps (CIIM), made from citizen reports of ground shaking following significant earthquakes. CIIMs are available for the 50 United States and territories, as well as for some significant events outside the U.S. Intensity maps are also available for some historic earthquakes. There is also information on fast moment tensor solutions, PAGER (Prompt Assessment of Global Earthquakes for Response), an automatic system to estimate human impact following significant Earthquakes, and ShakeMap, a product designed to provide near-real-time maps of ground motion and shaking intensity, and links to online seismogram displays.
Intended for grade levels:
  • Middle (6-8)
  • High (9-12)
  • College (13-14)
  • College (15-16)
  • Graduate / Professional
Type of resource:
  • Visual:
    • Map
  • Text:
    • Ref. material
  • Dataset:
    • In-situ
  • Geological Sciences:
    • Geophysics
  • Natural hazards
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
Information presented on this web site is considered public information and may be distributed or copied. Use of appropriate byline/photo/image credit is requested.
DLESE Catalog ID: DLESE-000-000-001-773
Related resources:
This resource references 'United States Geological Survey, Earthquake Hazards Program: Earthquake Research'
This resource references 'Earthquakes for Kids and Grownups: Fun and Educational Activities & Information'
Resource contact / Creator / Publisher:
Publisher: United States Geological Survey (USGS)
Earthquake Hazards Program