Metadata: Identification_Information: Citation: Citation_Information: Originator: Kathy Haller, U.S. Geological Survey Originator: Richard Dart, U.S. Geological Survey Originator: Susan Rhea, U.S. Geological Survey Publication_Date: 200501 Title: Quaternary Fault and Fold Database of the United States Geospatial_Data_Presentation_Form: Vector digital data Publication_Information: Publication_Place: Reston, VA Publisher: National Atlas of the United States Online_Linkage: Description: Abstract: This map layer contains locations and information on faults and associated folds, in the United States, that are believed to be sources of significant earthquakes (those of magnitude 6 or greater) during the past 1,600,000 years. Purpose: These data are intended for geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:250,000-scale data. No responsibility is assumed by the National Atlas of the United States in the use of these data. Supplemental_Information: The most up-to-date version of this data set as well as detailed descriptions and references for each fault are available through the online Quaternary Fault and Fold Database of the United States, at . In addition, in the Earthquake Hazards Program Quaternary Faults and Fold Database viewer , and in the National Atlas Map Maker , the geologic structures are linked to the database. The Quaternary Fault and Fold Database of the United States is intended to be the USGS archive for historic and ancient earthquake sources used in current and future probabilistic seismic-hazard analyses. The database summarizes important information on paleoseismic (ancient earthquake) parameters, compiled from thousands of journal articles, maps, theses, and other documents. It includes information on geographic, geologic, and paleoseismic parameters that are deemed critical to making geologic-based assessments of seismic hazards. In addition, it provides narrative comments that clarify, justify, or expound upon these parameters. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2005 Currentness_Reference: Publication date Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -126.39 East_Bounding_Coordinate: -70.81 North_Bounding_Coordinate: 48.89 South_Bounding_Coordinate: 23.19 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: USGS Enterprise Web Thesaurus Theme_Keyword: Earthquakes Theme_Keyword: Earthquake preparedness Theme_Keyword: Paleoseismology Theme_Keyword: Neotectonic processes Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Faults Theme_Keyword: Folds Theme_Keyword: Quaternary faults Place: Place_Keyword_Thesaurus: None Place_Keyword: USA Place_Keyword: United States Place: Place_Keyword_Thesaurus: U.S. Department of Commerce, 1995, Countries, Dependencies, Areas of Special Sovereignty, and Their Principal Administrative Divisions (Federal Information Processing Standard 10-4): Washington, DC, National Institute of Standards and Technology. Place_Keyword: Alabama Place_Keyword: Arizona Place_Keyword: Arkansas Place_Keyword: California Place_Keyword: Colorado Place_Keyword: Connecticut Place_Keyword: Delaware Place_Keyword: District of Columbia Place_Keyword: Florida Place_Keyword: Georgia Place_Keyword: Idaho Place_Keyword: Illinois Place_Keyword: Indiana Place_Keyword: Iowa Place_Keyword: Kansas Place_Keyword: Kentucky Place_Keyword: Louisiana Place_Keyword: Maine Place_Keyword: Maryland Place_Keyword: Massachusetts Place_Keyword: Michigan Place_Keyword: Minnesota Place_Keyword: Mississippi Place_Keyword: Missouri Place_Keyword: Montana Place_Keyword: Nebraska Place_Keyword: Nevada Place_Keyword: New Hampshire Place_Keyword: New Jersey Place_Keyword: New Mexico Place_Keyword: New York Place_Keyword: North Carolina Place_Keyword: North Dakota Place_Keyword: Ohio Place_Keyword: Oklahoma Place_Keyword: Oregon Place_Keyword: Pennsylvania Place_Keyword: Rhode Island Place_Keyword: South Carolina Place_Keyword: South Dakota Place_Keyword: Tennessee Place_Keyword: Texas Place_Keyword: Utah Place_Keyword: Vermont Place_Keyword: Virginia Place_Keyword: Washington Place_Keyword: West Virginia Place_Keyword: Wisconsin Place_Keyword: Wyoming Access_Constraints: None Use_Constraints: None. Acknowledgment of the Quaternary Faults and Fold Database, the U.S. Geological Survey, and (or) the National Atlas of the United States of America would be appreciated in products derived from these data. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Kathleen M Haller Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: Mailing address Address: P.O. Box 25046 City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: 303-273-8616 Contact_Facsimile_Telephone: 303-273-8600 Contact_Electronic_Mail_Address: Browse_Graphic: Browse_Graphic_File_Name: Browse_Graphic_File_Description: Viewer for the Quaternary Fault and Fold Database. Browse_Graphic_File_Type: Online viewer Native_Data_Set_Environment: Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 8.3.0.800 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Fault characteristics, even where known in detail, are reported in broad categories (for example "age less than 1,600,000 years"). The textual database contains more specific information about each fault where details were available in published literature. Completeness_Report: Faults in Alaska and Hawaii are not included. Data for California are incomplete; not all faults are included. Logical_Consistency_Report: Due to substantial differences in the geological setting and tectonic activity, the central and eastern United States appear to have fewer faults active in the Quaternary. This is partly a real phenomenon (the western US has more tectonic activity) and partly a detection problem. For example, the glacial sediments that cover much of the eastern Midwest conceal the evidence that would be used to infer movement along underlying faults in the Quaternary. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Locations of faults were taken from published literature; these investigations were carried out at a variety of scales of observation, hence some faults will be located more precisely and accurately than others. In general the locations are accurate as observed on a 1:250,000 scale map, or within approximately 450 feet. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2004 Title: Quaternary Fault and Fold Database of the United States Publication_Information: Publication_Place: Denver, CO Publisher: U.S. Geological Survey Online_Linkage: Type_of_Source_Media: Electronic mail system Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2004 Source_Currentness_Reference: Publication date Source_Citation_Abbreviation: QFAULT Source_Contribution: Spatial and attribute information Process_Step: Process_Description: The U.S. Geological Survey Earthquake Hazards Program provided a shapefile that was modified for use in the National Atlas Map Maker. The file was reprojected and the datum was converted from the North American Datum of 1927 to the North American Datum of 1983. In addition, in the area of overlapping polygons, two polygons were created, one for "St Louis-Cape Giradeau liquefaction" and one for "Wabash Valley liquefaction features". Source_Used_Citation_Abbreviation: QFAULT Process_Date: 200412 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 24 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Complete chain Point_and_Vector_Object_Count: 45814 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000278 Longitude_Resolution: 0.000278 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: GRS1980 Semi-major_Axis: 6378137 Denominator_of_Flattening_Ratio: 298.257222 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Quaternary faults (described by qfaultl_25.dbf) Entity_Type_Definition: Linear fault features in the conterminous United States. Entity_Type_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: Shape Attribute_Definition: The representation of the entity in the data. Attribute_Definition_Source: National Atlas of the United States Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Polyline Enumerated_Domain_Value_Definition: 1-dimensional element that may or may not surround a 2-dimensional element. Enumerated_Domain_Value_Definition_Source: ESRI GIS software Attribute: Attribute_Label: Qfaultl_25 Attribute_Definition: Internal feature number. Attribute_Definition_Source: National Atlas of the United States Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 45814 Attribute: Attribute_Label: Name Attribute_Definition: The fault name. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: There is no predefined set of valid fault names. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: The fault name is unknown. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: Code Attribute_Definition: A 3-digit code used for symbolizing faults. Each digit has a particular meaning: > >First digit: fault visibility code >1 = Exposed >2 = Concealed >3 = Inferred > >Second digit: fault age code >1 = Historic; referenced in dated recorded history, generally < 150 > years >2 = Holocene < 15,000 years >3 = Late Quaternary < 130,000 years >4 = Mid to late Quaternary < 750,000 years >5 = Quaternary < 1,600,000 years >6 = Class B; fault structures of questionable seismogenic origin that > may be older than the Quaternary > >Third digit: fault slip rate code >1 = > 5 mm/year >2 = 1 - 5 mm/year >3 = 0.2 – 1 mm/year >4 = < 0.2 mm/year Attribute_Definition_Source: National Atlas of the United States Attribute_Domain_Values: Unrepresentable_Domain: There is no predefined set of valid fault codes. Attribute: Attribute_Label: Num Attribute_Definition: The fault index number, which is linked to the online fault database. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: There is no predefined set of valid fault index numbers. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: There is no information about the fault available in the online fault database. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: Slip Attribute_Definition: A four-character code defining the fault type and slip direction. The first two characters describe the fault type: >N_ = normal >R_ = reverse >SS = strike-slip >T_ = thrust > The second two characters describe the slip direction: >__ = no data >C_ = center >E_ = east >LL = left lateral >N_ = north >NE = northeast >NW = northwest >RL = right lateral >S_ = south >SE = southeast >SW = southwest >W_ = west > Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: There is no predefined set of valid slip codes. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: The fault type and slip direction are not known. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: Age Attribute_Definition: The age of the fault in years. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: <1,600,000 Enumerated_Domain_Value_Definition: The fault is less than 1,600,000 years old. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: <750,000 Enumerated_Domain_Value_Definition: The fault is less than 750,000 years old. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: <130,000 Enumerated_Domain_Value_Definition: The fault is less than 130,000 years old. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: <15,000 Enumerated_Domain_Value_Definition: The fault is less than 15,000 years old. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: <150 Enumerated_Domain_Value_Definition: The fault is historic (less than 150 years old.) Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Class B Enumerated_Domain_Value_Definition: Class B faults may or may not be seismogenic (capable of generating earthquakes) and may be older than the Quaternary. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Unknown Enumerated_Domain_Value_Definition: The age is undetermined, but researchers believe that fault motion occurred in the Quaternary. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: Rate Attribute_Definition: The rate of motion obtained when the amount of offset is divided by the time interval. It is normalized to millimeters per year. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: <0.2 Enumerated_Domain_Value_Definition: The rate of motion is less than 0.2 millimeters per year. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0.2-1 Enumerated_Domain_Value_Definition: The rate of motion is 0.2 to 1 millimeters per year. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1-5 Enumerated_Domain_Value_Definition: The rate of motion is 1 to 5 millimeters per year. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: >5 Enumerated_Domain_Value_Definition: The rate of motion is greater than 5 millimeters per year. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: Slipsense Attribute_Definition: The angle of dip of the fault and the relative direction of movement across the fault. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Incomplete Enumerated_Domain_Value_Definition: The angle of dip and the relative direction of movement were not reported in the referenced material for the fault. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: LeftLateral Enumerated_Domain_Value_Definition: Horizontal displacement along a fault such that, in plan view, the side opposite the viewer appears to have moved to the left. This term is also known as sinistral. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Normal Enumerated_Domain_Value_Definition: A fault characterized by predominantly vertical displacement in which the hanging wall moves downward with respect to the footwall of the fault. If the fault surface is exposed, the footwall is the side onto which water would drip. Generally, this type of fault is a sign of tectonic extension. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Reverse Enumerated_Domain_Value_Definition: A fault in which the displacement is predominantly vertical, and the hanging wall moves up with respect to the footwall. The footwall is the side of the fault onto which water would drip if the fault is exposed. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: RightLateral Enumerated_Domain_Value_Definition: Horizontal displacement along a fault such that, in plan view, the side opposite the viewer appears to have moved to the right. This term is also known as dextral. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Thrust Enumerated_Domain_Value_Definition: A fault of less than 45° dip in which the displacement is predominantly vertical, and the hanging wall moves up with respect to the footwall. The footwall is the side of the fault onto which water would drip if the fault is exposed. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: Dipdirecti Attribute_Definition: The general direction of the fault dip which is the angle that the fault is inclined from the horizontal plane. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Center Enumerated_Domain_Value_Definition: The direction of the dip is towards the center of a hole or depression, as in a caldera or bowl. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: East Enumerated_Domain_Value_Definition: The direction of the dip is toward the east. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: North Enumerated_Domain_Value_Definition: The direction of the dip is toward the north. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Northeast Enumerated_Domain_Value_Definition: The direction of the dip is toward the northeast. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Northwest Enumerated_Domain_Value_Definition: The direction of the dip is toward the northwest. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: South Enumerated_Domain_Value_Definition: The direction of the dip is toward the south. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Southeast Enumerated_Domain_Value_Definition: The direction of the dip is toward the southeast. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Southwest Enumerated_Domain_Value_Definition: The direction of the dip is toward the southwest. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Unspecified Enumerated_Domain_Value_Definition: The direction of the dip is unknown. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Vertical Enumerated_Domain_Value_Definition: The fault face is near vertical. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: West Enumerated_Domain_Value_Definition: The direction of the dip is toward the west. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: Acode Attribute_Definition: A code indicating the age of the fault in years before the present. The code is used for symbolizing the lines in the map service and the National Atlas. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: The fault age is historic. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: The fault age is Holocene, <15,000 years. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 3 Enumerated_Domain_Value_Definition: The fault age is late Quaternary, <130,000 years. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 4 Enumerated_Domain_Value_Definition: The fault age is mid-late Quaternary, <750,000 years. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 5 Enumerated_Domain_Value_Definition: The fault age is Quaternary, <1,600,000 years. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 6 Enumerated_Domain_Value_Definition: The fault age is class B. It is not thought to be seismogenic (capable of producing earthquakes) and may be older than the Quaternary. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: Wwwurl Attribute_Definition: An identification code used to locate data in the online database. This is used by the interactive map service at and by Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: No information about the fault is available in the online database. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 84 Range_Domain_Maximum: 35110 Detailed_Description: Entity_Type: Entity_Type_Label: Quaternary fault areas (described by qfaultp_25.dbf) Entity_Type_Definition: Fault feature regions in the conterminous United States. Entity_Type_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: Shape Attribute_Definition: The representation of the entity in the data. Attribute_Definition_Source: National Atlas of the United States Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Polygon Enumerated_Domain_Value_Definition: 2-dimensional element Enumerated_Domain_Value_Definition_Source: ESRI GIS software Attribute: Attribute_Label: Area Attribute_Definition: The size of the shape in square coverage units. In the distributed file, coverage units represent square decimal degrees. Attribute_Definition_Source: National Atlas of the United States Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.002 Range_Domain_Maximum: 28.349 Attribute: Attribute_Label: Perimeter Attribute_Definition: The perimeter of shape in coverage units. In the distributed file, coverage units represent decimal degrees. Attribute_Definition_Source: National Atlas of the United States Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.191 Range_Domain_Maximum: 28.754 Attribute: Attribute_Label: Qfaultp_25 Attribute_Definition: Internal feature number. Attribute_Definition_Source: National Atlas of the United States Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2 Range_Domain_Maximum: 25 Attribute: Attribute_Label: Name Attribute_Definition: The name of the fault region. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: There is no predefined set of valid fault region names. Attribute: Attribute_Label: Age_class Attribute_Definition: A code indicating the age of the faults in years before the present. The code is used for symbolizing the area in the map service and the National Atlas. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: The fault age is historic, <150 years - 400 years. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: The fault age is Holocene < 15,000 years. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 3 Enumerated_Domain_Value_Definition: The fault age is late Quaternary < 130,000 years. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 6 Enumerated_Domain_Value_Definition: The fault age is class B. It is not thought to be seismogenic, and may be older than the Quaternary. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: Num Attribute_Definition: The fault index number(s), which is linked to the online database. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: There is no predefined set of valid fault index numbers. Attribute: Attribute_Label: Age Attribute_Definition: The age of the faults in years before the present. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: <1,600,000 Enumerated_Domain_Value_Definition: The faults are less than 1,600,000 years old. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: <15,000 Enumerated_Domain_Value_Definition: The faults are less than 15,000 years old. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: nodata Enumerated_Domain_Value_Definition: No data are available to determine the fault ages. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: various Enumerated_Domain_Value_Definition: Multiple ages were reported. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: Rate Attribute_Definition: The rate of motion obtained when the amount of offset is divided by the time interval. It is normalized to millimeters per year. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: <0.2 Enumerated_Domain_Value_Definition: The rate of motion is less than 0.2 millimeters per year. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: nodata Enumerated_Domain_Value_Definition: The rate of motion is unknown; no data is available. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: too few data Enumerated_Domain_Value_Definition: Not enough data are available to determine the rate of motion. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: Slipsense Attribute_Definition: The angle of dip of the faults and the relative direction of movement across the faults. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: nodata Enumerated_Domain_Value_Definition: No data is available to determine the angle of dip. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: normal Enumerated_Domain_Value_Definition: A fault characterized by predominantly vertical displacement in which the hanging wall moves downward with respect to the footwall of the fault. If the fault surface is exposed, the footwall is the side onto which water would drip. Generally, this type of fault is a sign of tectonic extension. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: sinistral Enumerated_Domain_Value_Definition: Horizontal displacement along a fault such that, in plan view, the side opposite the viewer appears to have moved to the left. This term is also known as left lateral. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: various Enumerated_Domain_Value_Definition: Faults are in a combination of dip directions. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: Dipdirection Attribute_Definition: The general direction of the fault dip, which is the angle that a fault is inclined from the horizontal plane. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: S, N Enumerated_Domain_Value_Definition: The dips are toward the south and the north. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SE, NW Enumerated_Domain_Value_Definition: The dips are toward the southeast and the northwest. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SW Enumerated_Domain_Value_Definition: The dips are toward the southwest. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SW, NE Enumerated_Domain_Value_Definition: The dips are toward the southwest and the northeast. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: V, SW Enumerated_Domain_Value_Definition: The dips are toward the southwest and the vertical. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: nodata Enumerated_Domain_Value_Definition: The direction of the dips is unknown. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: various Enumerated_Domain_Value_Definition: The direction of the dips varies. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: Wwwurl Attribute_Definition: An identification code used to locate data in the online database. This is used by the interactive map service at and by Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: No information about the fault is available in the online database. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 33814 Range_Domain_Maximum: 34137 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Earth Science Information Center, U.S. Geological Survey Contact_Address: Address_Type: Mailing address Address: 507 National Center City: Reston State_or_Province: VA Postal_Code: 20192 Contact_Voice_Telephone: 1-888-ASK-USGS (1-888-275-8747) Contact_Voice_Telephone: 703-648-5920 Contact_Instructions: In addition to the address above there are other ESIC offices throughout the country. A full list of these offices is at . Distribution_Liability: Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made by the U.S. Geological Survey regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. No responsibility is assumed by the U.S. Geological Survey in the use of these data. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ESRI Shapefile Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: Digital_Form: Digital_Transfer_Information: Format_Name: SDTS Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: Fees: There is no charge for the map layer. Metadata_Reference_Information: Metadata_Date: 20060808 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Peg Rawson Contact_Organization: National Atlas of the United States Contact_Address: Address_Type: Mailing and physical address Address: 12201 Sunrise Valley Dr Address: MS 561 City: Reston State_or_Province: VA Postal_Code: 20192 Contact_Voice_Telephone: 703-648-4183 Contact_Electronic_Mail_Address: atlasmail@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Security_Information: Metadata_Security_Classification_System: None Metadata_Security_Classification: Unclassified Metadata_Security_Handling_Description: None