Identification_Information: Citation: Citation_Information: Originator: Ponce, David A. Title: Principal facts for gravity data along the Hayward fault and vicinity, San Francisco Bay area, northern California Publication_Date: 2001 Series_Information: Series_Name: Open-File Report Issue_Identification: 01-124 Publication_Information: Publication_Place: Menlo Park, California Publisher: Geological Survey (U.S.) Online_Linkage: http://pubs.usgs.gov/of/2001/of01-124/ Description: Abstract: Data and associated physical property measurements were collected as part of on-going studies to help determine the earthquake hazard potential of major faults within the San Francisco Bay region Purpose: The Hayward fault is predominantly a right-lateral strike-slip fault that forms the western boundary of the East Bay Hills. These data and associated physical property measurements were collected as part of on-going studies to help determine the earthquake hazard potential of major faults within the San Francisco Bay region. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1998 Ending_Date: 2000 Currentness_Reference: Ground condition. Observations were made during this time interval Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -122.491 East_Bounding_Coordinate: -121.866833 North_Bounding_Coordinate: 38.2255 South_Bounding_Coordinate: 37.6065 Access_Constraints: none Use_Constraints: none Keywords: Theme: Theme_Keyword_Thesaurus: Alexandria Digital Library Feature Type Thesaurus Theme_Keyword: faults Place: Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4 Place_Keyword: f06001 = Alameda Place_Keyword: q38124NEG1 = Briones Valley Place_Keyword: q38122NWA1 = Clayton Place_Keyword: f06013 = Contra Costa Place_Keyword: q38122NWA2 = Diablo Place_Keyword: q38122NWA3 = Dublin Place_Keyword: q38124NEH3 = Hayward Place_Keyword: q38124NEH2 = Las Trampas Ridge Place_Keyword: f06055 = Napa Place_Keyword: q38124NEH4 = Newark Place_Keyword: q38122NWA4 = Niles Place_Keyword: q38124NEG2 = Oakland East Place_Keyword: q38124NEF2 = Oakland West Place_Keyword: q38124NEF1 = Richmond Place_Keyword: q38124NEG3 = San Leandro Place_Keyword: f06095 = Solano Place_Keyword: f06097 = Sonoma Place_Keyword: q38124NEH1 = Walnut Creek Theme: Theme_Keyword_Thesaurus: General glossary for mineral resources spatial data Theme_Keyword: Portable Document Format Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: geophysics Theme_Keyword: gravimeter measurement Theme_Keyword: gravitational field (earth) Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: David A Ponce Contact_Organization: USGS WR SW GD Contact_Address: Address_Type: mailing address Address: 345 Middlefield Road Mail Stop 989 City: Menlo Park State_or_Province: CA Postal_Code: 94025 Country: USA Contact_Voice_Telephone: 650-329-5314 Contact_Facsimile_Telephone: 650-329-5133 Contact_Electronic_Mail_Address: ponce@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://tin.er.usgs.gov/catalog/images/OFR_01-124.png Browse_Graphic_File_Description: Index map showing station locations as red circles, older observations as smaller black dots, (473 x 585 pixels) Browse_Graphic_File_Type: PNG Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Entity point Point_and_Vector_Object_Count: 942 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.98 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: table2.dbf Entity_Type_Definition: Principal facts of gravity stations Attribute: Attribute_Label: STATION Attribute_Definition: Station identification number Attribute: Attribute_Label: LAT Attribute_Definition: Geographic latitude in degrees and decimal minutes Attribute: Attribute_Label: LATITUDE Attribute_Definition: Geographic latitude in decimal degrees Attribute: Attribute_Label: LONG Attribute_Definition: Geographic longitude in degrees and decimal minutes Attribute: Attribute_Label: LONGITUDE Attribute_Definition: Geographic longitude in decimal degrees Attribute: Attribute_Label: ELEV_FT Attribute_Definition: Elevation of the station in feet Attribute: Attribute_Label: OG_MGAL Attribute_Definition: Observed gravity in mGal Attribute: Attribute_Label: FAA_MGAL Attribute_Definition: Free air anomaly in mGal Attribute: Attribute_Label: SBA_MGAL Attribute_Definition: Simple Bouguer anomaly in mGal Attribute: Attribute_Label: TC_INNER Attribute_Definition: Inner terrain correction in mGal Attribute: Attribute_Label: TC_TOTAL Attribute_Definition: Total terrain correction in mGal Attribute: Attribute_Label: CBA_MGAL Attribute_Definition: Complete Bouguer anomaly in mGal Attribute: Attribute_Label: ISO_MGAL Attribute_Definition: Isostatic anomaly in mGal Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS Information Services Contact_Address: Address_Type: mailing Address: Box 25286, Denver Federal Center City: Denver State_or_Province: Colorado Postal_Code: 80255-0046 Country: USA Contact_Voice_Telephone: 1-888-ASK-USGS Contact_Facsimile_Telephone: 1-303-202-4695 Contact_Electronic_Mail_Address: infoservices@usgs.gov Resource_Description: USGS Open-File Report 01-124 Distribution_Liability: This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards (or with the North American Stratigraphic Code). Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: Shapefile Format_Version_Number: 1.0 Format_Information_Content: Gravity observations File_Decompression_Technique: unzip Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2001/of01-124/of01-124_data.zip Fees: none Metadata_Reference_Information: Metadata_Date: 20090706 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Peter N Schweitzer Contact_Organization: USGS ER GD Contact_Position: Geologist Contact_Address: Address_Type: mailing address Address: 12201 Sunrise Valley Drive City: Reston State_or_Province: VA Postal_Code: 20192-0002 Country: USA Contact_Voice_Telephone: 703-648-6533 Contact_Facsimile_Telephone: 703-648-6252 Contact_Electronic_Mail_Address: pschweitzer@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998