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Quaternary Fault and Fold Database of the United States


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This website contains information on faults and associated folds in the United States that are believed to be sources of M>6 earthquakes during the Quaternary (the past 1,600,000 years). Maps of these geologic structures are linked to detailed descriptions and references. Read our Factsheet for more information.

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Additional Info

Field Value
Author Matthew Dieterich
Last Updated March 23, 2015, 16:09 (EDT)
Created May 10, 2012, 06:33 (EDT)
Ecological Region Terrestrial