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Quaternary Faults and Folds by State and Region
This interactive map of the United states provides access to maps of Quaternary faults and folds by state or region (for example, the Gulf Coast). Clicking on the colored areas of the map links the user to state/regional maps and further, to 1x2 degree sheets for each area. On the sheets, users can find faults numbered and indexed to a legend. Links from the legend provide access to written information, where available, for each fault. There are three levels of written reports, ranging from a brief synopsis to a "complete" report that includes references.
Intended for grade levels:
  • Middle (6-8)
  • High (9-12)
  • College (13-14)
  • Graduate / Professional
Type of resource:
  • Visual:
    • Map
  • Text:
    • Ref. material
  • Geological Sciences:
    • Geology
    • Structural geology
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
Information presented on this website is considered public information (unless otherwise noted) and may be distributed or copied. Use of appropriate byline/photo/image credit is requested. We strongly recommend that USGS data be acquired directly from a USGS server and not through other sources that may change the data in some way. While USGS makes every effort to provide accurate and complete information, various data such as names, telephone numbers, etc. may change prior to updating. USGS welcomes suggestions on how to improve our home page and correct errors. USGS provides no warranty, expressed or implied, as to the accuracy, reliability or completeness of furnished data.
DLESE Catalog ID: DLESE-000-000-008-806
Related resources:
This resource references 'Quaternary Fault and Fold Database for the United States: California'
Resource contact / Creator / Publisher:
Publisher: The U.S. Geological Survey
Earthquake Hazards Program