Map Showing Recent and Historic Landslide Activity on Coastal Bluffs of Puget Sound Between Shilshole Bay and Everett, Washington

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Baum, Rex L.

Originator: Harp, Edwin L.

Originator: Hultman, William A.

Publication_Date: 2000

Title:

Map Showing Recent and Historic Landslide Activity on Coastal Bluffs of Puget Sound Between Shilshole Bay and Everett, Washington

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: U.S. Geological Survey Miscellaneous Field Studies Map

Issue_Identification: MF-2346

Publication_Information:

Publication_Place: Denver, Colorado

Publisher: U.S. Geological Survey

Online_Linkage:

<http://greenwood.cr.usgs.gov/pub/mf-maps/mf-2346/>

Description:

Abstract:

This cover contains locations where landslide activity occurred between 1933 and 1960 and is limited to the southern part of the publication map area. Rex Baum transferred outlines of the landslide areas from oblique aerial photographs of the bluffs onto paper maps. John Michael digitized the outlines from the paper map. Shannon and Wilson, Inc. compiled the original data.

Purpose:

This cover shows the general distribution of historic landslides along the bluffs next to Puget Sound from Shilshole Bay to the north edge of Seattle. The polygons represent approximate areas where one or more landslides occurred and do not represent the boundaries of individual landslides. The data are not intended to be used at any finer scale than 1:24,000 scale. The data should not be used as a substitute for detailed investigation to determine site-specific slope stability or the existence of landslides at specific sites.

Supplemental_Information:

The coverage combines data from the U.S. Geological Survey and Shannon and Wilson, Inc. Data provided by Shannon and Wilson, Inc. are used with permission of Burlington Northern Santa Fe Railroad.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1933

Ending_Date: 1960

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None Planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -122.40273285

East_Bounding_Coordinate: -122.37043762

North_Bounding_Coordinate: 47.73417282

South_Bounding_Coordinate: 47.68018723

Keywords:

Theme:

Theme_Keyword_Thesaurus: none

Theme_Keyword: landslides

Theme_Keyword: debris flows

Theme_Keyword: slope stability

Place:

Place_Keyword_Thesaurus: none

Place_Keyword: USA

Place_Keyword: Washington

Place_Keyword: King County

Access_Constraints: none

Use_Constraints:

The data were compiled at 1:24,000 scale and are not intended to be used at any scale larger than 1:24,000. The data should not be used as a substitute for detailed investigation to determine site-specific slope stability or the existence of landslides at specific sites.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Rex L. Baum

Contact_Organization: Central Region Geologic Hazards Team

Contact_Address:

Address_Type: mailing address

Address: U.S. Geological Survey, Box 25046, MS 966

City: Denver

State_or_Province: Colorado

Postal_Code: 80225-0046

Country: USA

Contact_Voice_Telephone: (303)273-8610

Contact_Electronic_Mail_Address: baum@usgs.gov

Native_Data_Set_Environment:

SunOS, 5.6, sun4u UNIX ARC/INFO version 7.2.1

Cross_Reference:

Citation_Information:

Originator: Shannon and Wilson, Inc.

Publication_Date: 1960

Title:

Report of landslide investigation, Great Northern Railway, Ballard to Everett, Seattle, Washington, unpublished.

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The linework was captured by hand digitizing from the 7.5' x 15' Seattle North quadrangle. The polygons were rigorously proofed. The coverage was edited and assembled using ARC/INFO software.

Logical_Consistency_Report:

Polygon topology present. All polygons contain label points and are closed.

Completeness_Report: The data are complete.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

The 7.5' x 15' quadrangle was registered on an Altek digitizer with errors not greater than 1/200 inch.

Lineage:

Process_Step:

Process_Description:

The landslide polygon outlines were drawn on the 7.5' x 15' Seattle North paper map quadrangle. The outlines were interpreted primarily from aerial photographs. The linework was captured by hand digitizing the quadrangle. The polygons were rigorously proofed against the original map. The coverage was edited and assembled using ARC/INFO software.

Process_Date: 1999

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: John Michael

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing address

Address: Box 25046, Mail Stop 966

City: Denver

State_or_Province: Colorado

Postal_Code: 80225

Country: USA

Contact_Voice_Telephone: 303-273-8562

Contact_Electronic_Mail_Address: jmichael@usgs.gov

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Point

Point_and_Vector_Object_Count: 24

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: String

Point_and_Vector_Object_Count: 24

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains

Point_and_Vector_Object_Count: 25

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.0000068631757

Longitude_Resolution: 0.0000068631757

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:

Overview_Description:

Entity_and_Attribute_Overview:

Attribute items are in ARC/INFO feature class format. Additional
items that were added to the data are:

POLYGON:

attribute	description
---------	-----------
 slide		a binary designator identifying a landslide polygon.
		1=landslide    0=no landslide (donut hole)

Entity_and_Attribute_Detail_Citation: none

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey, Information Services

Contact_Address:

Address_Type: mailing address

Address: Box 25286, Mail Stop 306

City: Denver

State_or_Province: Colorado

Postal_Code: 80225

Country: USA

Contact_Voice_Telephone: 1-888-ASK-USGS

Contact_Facsimile_Telephone: 303-202-4693

Distribution_Liability:

Although these data have been used by the U.S. Geological Survey, no warranty, expressed or implied is made by the USGS as to the accuracy of the data and related material nor shall the fact of distribution constitute any such warranty, and no responsibility is assumed by the USGS in connection therewith.

Metadata_Reference_Information:

Metadata_Date: 2000

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: John Michael

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing address

Address: Box 25046, Mail Stop 966

City: Denver

State_or_Province: Colorado

Postal_Code: 80225

Country: USA

Contact_Voice_Telephone: 303-273-8562

Contact_Electronic_Mail_Address: jmichael@usgs.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Access_Constraints: none

Metadata_Use_Constraints: none