Metadata: Identification_Information: Citation: Citation_Information: Originator: Haeussler, P.J. Publication_Date: 2009 Title: Surface rupture map of the 2002 M7.9 Denali fault earthquake, Alaska: digital data Edition: Version 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Data Series Issue_Identification: DS 422 Online_Linkage: http://pubs.usgs.gov/ds/422/ Description: Abstract: The November 3, 2002, M7.9 Denali Fault earthquake produced about 340 km of surface rupture along the Susitna Glacier thrust fault and the Denali and Totschunda right-lateral strike-slip faults. Digital photogrammetric methods were primarily used to create a 1:500-scale three-dimentional surface rupture map. 1:6000-scale aerial photographs were used for three dimensional digitization in ESRI's ArcMap GIS software, using Leica's StereoAnalyst plug in. Points were digitized along surface breaks on average 4.3 m apart for the surface rupture, where it was not through glacier ice. Earthquake-induced landslides, sackungen, and unruptured Holocene fault scarps on the eastern Denali fault were also digitized where they lay within the limits of air photo coverage. This digital three-dimensional fault trace map is superior to traditional maps in terms of relative and absolute accuracy, completeness, detail, and as a basis for three dimensional visualization. Fieldwork complements the air photo observations in locations of dense vegetation, on bedrock, or where the surface trace is weakly developed. Seventeen kilometers of the fault trace, which broke through glacier ice, was not digitized in detail due to time constraints, and air photos missed another 10 km of fault rupture through the upper Black Rapids Glacier, so that was not mapped in detail either. Purpose: Digital representation of geologic mapping facilitates the presentation and analysis of earth-science data. Digital maps may be displayed at any scale or projection, however the geologic data in this coverage is not intended for use at a scale larger than 1:500. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20021102 Currentness_Reference: publication date Status: Progress: In work Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -147.53 East_Bounding_Coordinate: -142.36 North_Bounding_Coordinate: 63.53 South_Bounding_Coordinate: 62.31 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: geology Theme_Keyword: surface rupture map Place: Place_Keyword_Thesaurus: None Place_Keyword: Alaska Place_Keyword: Alaska Range Place_Keyword: Black Rapids Glacier Place_Keyword: Susitna Glacier Place_Keyword: Canwell Glacier Place_Keyword: Gakona Glacier Place_Keyword: Mentasta Place_Keyword: Little Tok River Place_Keyword: Totschunda Creek Place_Keyword: Augustana Creek Place_Keyword: Slate Creek Place_Keyword: Chistochena Glacier Place_Keyword: Slana River Place_Keyword: Nabesna River Place_Keyword: Blue Lake Place_Keyword: West Fork Glacier Access_Constraints: None Use_Constraints: Acknowledgement of the U.S. Geological Survey would be appreciated in products derived from this data. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Peter J. Hauessler Contact_Position: Research Geologist Contact_Address: Address_Type: mailing and physical address Address: 4200 University Drive City: Anchorage State_or_Province: AK Postal_Code: 99508-4667 Country: USA Contact_Voice_Telephone: 907-786-7447 Contact_Electronic_Mail_Address: pheuslr@usgs.gov Data_Set_Credit: This digital coverage was created by Peter J. Haeussler. Native_Data_Set_Environment: Data set was created using ESRI ArcMAP version 9.1.1 on a Windows platform. Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: A simplified line was digitized along the general trace of the Denali fault earthquake surface rupture. The earthquake started on the west and and ruptured eastward. Thus, every kilometer along the fault is a kilometer along the generalized surface-rupture trace. This distance provides a useful way to mark one's position along the fault rupture. Logical_Consistency_Report: ESRI personal geodatabase DFrupture.mdb contains three feature classes. The "DFkilometers" point feature class gives distances along the fault trace in kilometers east of the 2 November, 2002, earthquake epicenter. Completeness_Report: This geodatabase can be used to display a map of the M7.9 2002 Denali fault earthquake surface rupture. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Users of this digital geologic map should respect the intentions of the original mappers and the limitations of the map. This map compilation is intended to be used at a scale of 1:500. It is not intended to be used at a more detailed scale. Lineage: Process_Step: Process_Description: A line was digitized along the general trace of the Denali fault earthquake surface rupture. The earthquake started on the west and kilometer along the generalized surface-rupture trace. This distance provides a useful way to mark one's position along the fault rupture. Process_Date: 2003 to 2009 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Peter Haeussler Contact_Address: Address_Type: mailing and physical address Address: 4200 University Drive City: Anchorage State_or_Province: AK Postal_Code: 99508-4667 Country: USA Contact_Voice_Telephone: 907-786-7447 Contact_Electronic_Mail_Address: pheuslr@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 6 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -147 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000512 Ordinate_Resolution: 0.000512 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: D_WGS_1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.000 Denominator_of_Flattening_Ratio: 298.257224 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: DFkilometers Entity_Type_Definition: The DFkilometers feature class in the geodatabase DFrupture.mdb contains the field Distance. Entity_Type_Definition_Source: This dataset Attribute: Attribute_Label: Distance Attribute_Definition: Distance is a numeric integer field. Distance identifies the distance, in kilometers, along the Denali fault system, east of the epicenter of the 2002 M7.9 Denali fault earthquake. Attribute_Definition_Source: This dataset Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 302 Attribute_Units_of_Measure: kilometers Distribution_Information: Resource_Description: Data Series 422 Distribution_Liability: Although this data has been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data, software, or related materials. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: Data Series 422 Format_Version_Number: 1.0 Format_Version_Date: 2009128 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/ds/422/ Fees: none Metadata_Reference_Information: Metadata_Date: 2009128 Metadata_Review_Date: 2009128 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Peter Haeussler Contact_Address: Address_Type: mailing and physical address Address: 4200 University Drive City: Anchorage State_or_Province: AK Postal_Code: 99508-4667 Country: USA Contact_Voice_Telephone: 907-786-7447 Contact_Electronic_Mail_Address: pheuslr@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998