Relative Earthquake Hazard Maps of the Salem East and Salem West Quadrangles, Marion and Polk Counties, Oregon

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator:
Yumei Wang, Oregon Department of Geology and Mineral Industries
Originator:
William J. Leonard, Oregon Department of Geology and Mineral Industries
Publication_Date: 1996
Publication_Time: Unknown
Title:
Relative Earthquake Hazard Maps of the Salem East and Salem West Quadrangles, Marion and Polk Counties, Oregon
Edition: Version 1
Geospatial_Data_Presentation_Form: database
Series_Information:
Series_Name: Geological Map Series
Issue_Identification: 105
Publication_Information:
Publication_Place: Portland, OR
Publisher:
Oregon Department of Geology and Mineral Industries
Other_Citation_Details: Text accompanies four hazard maps
Online_Linkage: www.oregongeology.com
Description:
Abstract:
The Relative Earthquake Hazard Maps were developed to identify and characterize earthquake hazards in the Salem East and Salem West quadrangles, Marion and Polk Counties, Oregon. The publication includes a text and four maps: (1) Liquefaction Susceptibility Map, (2) Amplification Susceptibility Map, (3) Landslide Susceptibility Map, and (4) Relative Earthquake Hazard Map. These maps show categories of relative susceptibility to earthquake induced liquefaction, amplification of peak ground acceleration, landslides, and general earthquake hazard zones, respectively. Areas within the highest susceptibility zone have the greatest hazard and are likely to suffer the most intense damage related to ground response; those in the lowest hazard zone are likely to suffer the least. Three earthquake hazards related to site geology (liquefaction, amplification, and landsliding) were individually evaluated. They were combined to develop the Relative Earthquake Hazard Map, which allows both technical and nontechnical users to gain an understanding of earthquake hazards and take steps to reduce the risk to life and property through planning policy and other mitigation measures. The map set was developed to serve as a regional planning tool and does not have site-specific accuracy. All areas shown on the map are susceptible to strong earthquake shaking due to the regional earthquake setting.
Purpose:
To identify and characterize earthquake hazards in the Salem East and Salem West quadrangles of Marion and Polk Counties, Oregon
Supplemental_Information:
The digital map information for the earthquake hazard maps of the Salem East and Salem West quadrangles is in the following files: Amp_poly, Liquef_poly, LS_poly, and RelHaz_poly. These geographic information system (GIS) files contain spatially referenced polygon features linked to attribute information. Please refer to the text that accompanies the map(s). This study was funded in part by the City of Salem and by State Lottery funds appropriated to the Oregon Department of Geology and Mineral Industries.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19950000
Ending_Date: 19960000
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -123.125
East_Bounding_Coordinate: -122.875
North_Bounding_Coordinate: 45
South_Bounding_Coordinate: 44.875
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Geology
Theme_Keyword: Earthquake hazard
Theme_Keyword: Liquefaction hazard
Theme_Keyword: Landslide susceptibility
Theme_Keyword: Amplification Susceptibility
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Oregon
Place_Keyword: Salem
Place_Keyword: Marion County
Place_Keyword: Polk County
Stratum:
Stratum_Keyword_Thesaurus: None
Temporal:
Temporal_Keyword_Thesaurus: None
Access_Constraints: None
Use_Constraints:
The results and conclusions of this report are necessarily based on limited data and resources available for this project. Information provided in this publication should NOT be used in place of site-specific studies. For example, the relative hazard zones are not intended to replace site-specific evaluations, such as for engineering analysis and design. Site-specific earthquake hazards should be assessed through geotechnical or engineering geology investigation by qualified practitioners.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Yumei Wang
Contact_Organization:
Oregon Department of Geology and Mineral Industries
Contact_Position: Geotechnical engineer
Contact_Address:
Address_Type: mailing and physical address
Address: 800 NE Oregon Street
City: Portland
State_or_Province: Oregon
Postal_Code: 97232
Country: USA
Contact_Voice_Telephone: 503 731-4100 x226
Contact_Facsimile_Telephone: 503 731-4066
Browse_Graphic:
Browse_Graphic_File_Description: Adobe Acrobat viewing file
Browse_Graphic_File_Type: PDF
Data_Set_Credit:
The digital data set was organized for distribution by Paul Staub, Oregon Department of Geology and Mineral Industries.
Security_Information:
Security_Classification_System: None
Security_Classification: None
Security_Handling_Description: None
Native_Data_Set_Environment: MapInfo GIS software, Version 6.0
Data_Quality_Information:
Completeness_Report:
This report is designed to describe completely the relative earthquake hazard information at a scale of 1:24,000 for the Salem East and Salem West 7½' U.S. Geological Survey quadrangles.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The accuracy of the relative earthquake hazard maps is closely tied to the accuracy of the three-dimensional geologic model, the material properties assigned to the geologic layers, and the modeling techniques. The map accuracy varies spatially depending on the input data availability, thus the maps do not have site specific accuracy. The geologic model and material properties were developed from cone penetrometer test, boreholes, and water well logs. Refer to GMS-105 text for an explanation on how the maps were made, with specific reference to Figure 1 and tables 1 and 2 for input data.
Lineage:
Source_Information:
Source_Citation:
Source_Time_Period_of_Content:
Process_Step:
Process_Description:
The mapmaking process includes developing a three-dimensional geologic model; measuring and estimating relevant geotechnical parameters for units in the geologic model; selecting earthquake scenarios and other input parameters for analyses of earthquake-induced liquefaction, ground motion amplification, and landsliding; performing individual analyses and producing the individual hazard maps.
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Yumei Wang
Contact_Organization:
Oregon Department of Geology and Mineral Industries
Contact_Position: Geotechnical engineer
Contact_Address:
Address_Type: mailing and physical address
Address: 800 NE Oregon Street
City: Portland
State_or_Province: Oregon
Postal_Code: 97232
Country: USA
Contact_Voice_Telephone: 503 731-4100 x226
Contact_Facsimile_Telephone: 503 731-4066
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: 10
Transverse_Mercator:
Longitude_of_Central_Meridian: -123
Latitude_of_Projection_Origin: 0
False_Easting: 500000
False_Northing: 0
Scale_Factor_at_Central_Meridian: .9996
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: .0001
Ordinate_Resolution: .0001
Planar_Distance_Units: meters
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:
Overview_Description:
Entity_and_Attribute_Overview:
The polygon entities represent zones of relative hazard. The database fields include a unique polygon identification number and the hazard zone or category. See accompanying text for a description of the hazard zones and categories.
Entity_and_Attribute_Detail_Citation:
GMS-105 Relative Earthquake Hazard Maps of the Salem East and salem West Quadrangles, Marion and Polk Counties, Oregon
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Nature of the Northwest Info Center (NNWIC)
Contact_Person: Donald Haines
Contact_Position: manager
Contact_Address:
Address_Type: mailing and physical address
Address: 800 NE Oregon Street
City: Portland
State_or_Province: OR
Postal_Code: 97232
Country: USA
Contact_Voice_Telephone: 503/872-2750
Contact_TDD/TTY_Telephone: unavailable
Contact_Facsimile_Telephone: 503/731-4066
Contact_Electronic_Mail_Address: http://www.naturenw.org
Hours_of_Service: 9:00 a.m. to 5:00 p.m. Monday Through Friday
Resource_Description: GMS-105
Distribution_Liability:
Although these data have been processed successfully on a computer system at the Oregon Department of Geology and Mineral Industries (DOGAMI), no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that these data are directly acquired from DOGAMI, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The Oregon Department of Geology and Mineral Industries shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: MapInfo .TAB and .MIF and ArcView .SHP
Digital_Transfer_Option:
Offline_Option:
Offline_Media: CD-ROM
Compatibility_Information: None
Fees: $10
Ordering_Instructions: None
Metadata_Reference_Information:
Metadata_Date: 20020201
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Paul Staub
Contact_Organization:
Oregon Department of Geology and Mineral Industries
Contact_Position: Spatial Data Specialist
Contact_Address:
Address_Type: mailing address
Address: Suite 965
Address: 800 NE Oregon Street
City: Portland
State_or_Province: Oregon
Postal_Code: 97232
Country: USA
Contact_Voice_Telephone: 503/731-4100 x224
Contact_Facsimile_Telephone: 503/731-4066
Contact_Electronic_Mail_Address: Paul.Staub@state.or.us
Metadata_Standard_Name:
FGDC Content Standard For Digital Geospatial Metadata
Metadata_Standard_Version: December 1995
Metadata_Access_Constraints: None
Metadata_Use_Constraints: None
Metadata_Security_Information:
Metadata_Security_Classification_System: None
Metadata_Security_Classification: Unclassified
Metadata_Security_Handling_Description: None
Generated by mp on Tue Feb 5 10:16:13 2002