This movement may vary from a few centimetres to many kilometres depending on the nature and magnitude of the stresses and resistance offered by the rocks. branching and reconnecting) faults. A fault is a fracture in rock where there has been movement and displacement. Jennings, C.W., 1975, Fault map of California with locations of volcanoes, thermal springs, and thermal wells: California Division of Mines and Geology California Geologic Data Map 1, scale 1:750,000. Data for Quaternary faults, liquefaction features, and possible tectonic features in the Central and Eastern United States, east of the Rocky Mountain Front; 2000; OFR; 2000-260; Crone, Anthony J.; Wheeler, Russell L. Probabilistic seismic hazard assessment for the state of California; 1996; OFR; 96-706; Petersen, M. D.; Bryant, W. A.; Cramer, C. H.; Cao, Tiaquing; Reichle, M. S.; Frankel, A. D.; Lienkaemper, J. J.; McCrory, P. A.; Schwartz, D. P. National Seismic-Hazard Maps: Documentation June 1996; 1996; OFR; 96-532; Frankel, Arthur D.; Mueller, Charlies S.; Barnhard, Theodore P.; Perkins, David M.; Leyendecker, E. V.; Dickman, Nancy; Hanson, Stanley L.; Hopper, Margaret G. Maps of major active faults, Western Hemisphere, International Lithosphere Program (ILP), Project II-2; guidelines for U.S. database and map, June 1993; 1993; OFR; 93-338; Haller, K. M.; Machette, M. N.; Dart, R. L. Quaternary fault map of the Basin and Range and Rio Grande Rift provinces, Western United States; 1982; OFR; 82-579; Nakata, John K.; Wentworth, C. M.; Machette, Michael N. Preliminary map showing known and suspected active faults in Colorado; 1976; OFR; 76-154; Witkind, Irving Jerome, Preliminary map showing known and suspected active faults in Idaho; 1975; OFR; 75-278; Compiled by Witkind, Irving Jerome, Preliminary map showing known and suspected active faults in Wyoming; 1975; OFR; 75-279; Compiled by Witkind, Irving Jerome, Preliminary map showing known and suspected active faults in western Montana; 1975; OFR; 75-285; Compiled by Witkind, Irving Jerome, Geographic Names Information System (GNIS), Mapping, Remote Sensing, and Geospatial Data, Seismic Hazard Maps and Site-Specific Data, https://www.usgs.gov/natural-hazards/earthquake-hazards/faults. Quaternary Fault and Fold Database of the United States, Interactive Quaternary faults map. Many modern web browsers have an “auto complete” function that will fill in data fields based on the first several characters or digits from your browser profile. A fault is a fracture along which the blocks of crust on either side have moved relative to one another parallel to the fracture. 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). horse. anastomosing (i.e. Many of the comments in the database provide justification for the paleoseismic parameters that were chosen to characterize the faults and folds. You should turn off this feature prior to conducting searches that require entering characters or digits. Compression stressOccurs at convergent plate boundaries. On the basis of pattern faults are classified into … There are three basic types of search fields: those with (1) pull-down menus, (2) text, and (3) numeric. Menges, C.M., and Pearthree, P.A., 1983, Map of neotectonic (latest Pliocene-Quaternary) deformation in Arizona: Arizona Bureau of Geology Mineral Technology Open-File Report 83-22, 48 p., scale 1:500,000. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. is a region containing several parallel or . The narrower the search; the quicker the results will be available. There are three main categories of stress: 1. Fault, in geology, a planar or gently curved fracture in the rocks of Earth’s crust, where compressional or tensional forces cause relative displacement of the rocks on the opposite sides of the fracture. The database is intended to be the USGS’s archive for historic and ancient earthquake sources used in current and future probabilistic seismic-hazard analyses. This sometimes makes earthquakes. Our website presents—for the first time—a single source that summarizes important information on paleoseismic (ancient earthquake) parameters. A fault trace is also the line commonly plotted on geologic maps to represent a fault. The GIS data was engineered by Richard Dart and maintained by Jerry Mayer (USGS). This database was used to create the fault-source characterization in the National Seismic Hazard Maps. Define fault line. Fault definition is - weakness, failing; especially : a moral weakness less serious than a vice. The searchable paleoseismic characteristics include time of most recent prehistoric deformation, year of historic deformation, and slip-rate category. In normal faults, the fault plane may be inclined at any angle between horizontal and vertical, but most commonly, the fault … In this release of hazard maps we present numerous maps and data with varying parameters. Archived reports are accessible from the abbreviated record. (2007) as a ‘clay-rich incohesive cataclasite’. Noun. Any fault -bounded s liver in a fault zone is a . State (Jennings, 1975; Witkind, 1975; 1975; 1975; 1976; Menges and Pearthree, 1983 #2073), regional (Nakata and others, 1982), and National Howard and others, 1978) maps were compiled to show the location and relative timing of major faults. allows us to approach a total fault throw of 620-640 m that should be mostly accommodated by the Rambla de la Viuda fault. A reverse fault with a small dip angle is called a thrust fault. When people learn about it, they often wonder if fault creep can defuse future earthquakes, or make them smaller. 1. However, it offers a synopsis, as of 1975, of more extensive data that must be taken... Quaternary Fault and Fold Database for the Nation; 2004; FS; 2004-3033; Geological Survey (U.S.). 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