Search Help
Global Change Master Directory (GCMD)
Map and map database of susceptibility to slope failure by sliding and earthflow in the Oakland area, California
Entry ID: USGS_Map_MF-2385


Summary
Abstract: Mitigation is superior to post-disaster response in reducing the billions of
dollars in losses resulting from U.S. natural disasters, and information that
predicts the varying likelihood of geologic hazards can help public agencies
improves the necessary decision making on land use and zoning. Accordingly,
this map was created to increase the resistance of one urban area, metropolitan
Oakland, California, to land sliding. Prepared in a geographic information
system from a statistical model, the map estimates the relative likelihood of
local slopes to fail by two processes common to this area of diverse geology,
terrain, and land use.

Map data that predict the varying likelihood of land sliding can help public
agencies make informed decisions on land use and zoning. This map, prepared in
a geographic information system from a statistical model, estimates the
relative likelihood of local slopes to fail by two processes common to an area
of diverse geology, terrain, and land use centered on metropolitan Oakland.
The model combines the following spatial data: (1) 120 bedrock and surficial
geologic-map units, (2) ground slope calculated from a 30-m digital elevation
model, (3) an inventory of 6,714 old landslide deposits (not distinguished by
age or type of movement and excluding debris flows), and (4) the locations of
1,192 post-1970 landslides that damaged the built environment. The resulting
index of likelihood, or susceptibility, plotted as a 1:50,000-scale map, is
computed as a continuous variable over a large area (872 km2) at a
comparatively fine (30 m) resolution. This new model complements landslide
inventories by estimating susceptibility between existing landslide deposits,
and improves upon prior susceptibility maps by quantifying the degree of
susceptibility within those deposits.

Susceptibility is defined for each geologic-map unit as the spatial frequency
(areal percentage) of terrain occupied by old landslide deposits, adjusted
locally by steepness of the topography. Susceptibility of terrain between the
old landslide deposits is read directly from a slope histogram for each
geologic-map unit, as the percentage (0.00 to 0.90) of 30-m cells in each
one-degree slope interval that coincides with the deposits.

Susceptibility within landslide deposits (0.00 to 1.33) is this same percentage
raised by a multiplier (1.33) derived from the comparative frequency of recent
failures within and outside the old deposits. Positive results from two
evaluations of the model encourage its extension to the 10-county San Francisco
Bay region and elsewhere. A similar map could be prepared for any area where
the three basic constituents, a geologic map, a landslide inventory, and a
slope map, are available in digital form. Added predictive power of the new
susceptibility model may reside in attributes that remain to be explored-among
them seismic shaking, distance to nearest road, and terrain elevation, aspect,
relief, and curvature.

Related URL
Link: View Related Information


Link: View Related Information
Description: Digital database files, files for plotting the maps, PDF map
and pamphlet files, readme files, and metadata may be downloaded from
this URL.

Geographic Coverage
 N: 38.0 S: 37.625  E: -122.0  W: -122.375

Data Set Citation
Dataset Creator: Pike, Richard J.; Graymer, Russell W.; Roberts, Sebastian; Kalman, Naomi B.; Sobieszczyk, Steven
Dataset Title: Map and map database of susceptibility to slope failure by sliding and earthflow in the Oakland area, California
Dataset Series Name: U.S. Geological Survey Miscellaneous Field Studies Map
Dataset Release Date: 2001
Dataset Release Place: Menlo Park, CA, USA
Dataset Publisher: U.S. Geological Survey
Version: 1.0
Issue Identification: MF-2385
Data Presentation Form: Map
Online Resource: http://pubs.usgs.gov/mf/2002/2385/


Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CALIFORNIA > OAKLAND
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CALIFORNIA > BERKELEY
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CALIFORNIA > PIEDMONT


Data Resolution
Latitude Resolution: 30 meters
Longitude Resolution: 30 meters


Science Keywords
HUMAN DIMENSIONS >BOUNDARIES >ADMINISTRATIVE DIVISIONS    [Definition]
HUMAN DIMENSIONS >BOUNDARIES >POLITICAL DIVISIONS    [Definition]
HUMAN DIMENSIONS >NATURAL HAZARDS >EARTHQUAKES    [Definition]
HUMAN DIMENSIONS >SOCIAL BEHAVIOR >DISASTER RESPONSE    [Definition]
HUMAN DIMENSIONS >SOCIAL BEHAVIOR >HAZARD MITIGATION/PLANNING    [Definition]
LAND SURFACE >EROSION/SEDIMENTATION >LANDSLIDES    [Definition]
LAND SURFACE >EROSION/SEDIMENTATION >SEDIMENTS    [Definition]
LAND SURFACE >GEOMORPHIC LANDFORMS/PROCESSES >TECTONIC LANDFORMS >FAULTS    [Definition]
LAND SURFACE >GEOMORPHIC LANDFORMS/PROCESSES    [Definition]
LAND SURFACE >TOPOGRAPHY >TERRAIN ELEVATION    [Definition]
LAND SURFACE >TOPOGRAPHY >TERRAIN ELEVATION >CONTOUR MAPS    [Definition]
SOLID EARTH >GEOMORPHIC LANDFORMS/PROCESSES >TECTONIC LANDFORMS >FAULTS    [Definition]
SOLID EARTH >ROCKS/MINERALS/CRYSTALS >BEDROCK LITHOLOGY    [Definition]
SOLID EARTH >ROCKS/MINERALS/CRYSTALS >SEDIMENTS    [Definition]
SOLID EARTH >TECTONICS >PLATE TECTONICS >FAULT MOVEMENT    [Definition]
LAND SURFACE >GEOMORPHIC LANDFORMS/PROCESSES >TECTONIC PROCESSES >TECTONIC UPLIFT    [Definition]
SOLID EARTH >GEOMORPHIC LANDFORMS/PROCESSES >TECTONIC PROCESSES >TECTONIC UPLIFT    [Definition]


ISO Topic Category
BOUNDARIES
ELEVATION
ENVIRONMENT
GEOSCIENTIFIC INFORMATION


Access Constraints
None


Use Constraints
Uses of this digital landslide susceptiblity map should not violate
the spatial resolution of the data. Although the digital form of the
data removes the constraint imposed by the scale of a paper map, the
detail and accuracy inherent in map scale are also present in the
digital data. The fact that this database was edited for a scale of
1:50,000 means that higher resolution information, greater than 30
meter cell size, is not present in the dataset. Plotting at scales
larger than 1:50,000 (30m cell size) will not yield greater real
detail, although it may reveal fine-scale irregularities below the
intended resolution of the database. Similarly, where this database
is used in combination with other data of higher resolution, the
resolution of the combined output will be limited by the lower
resolution of these data.


Keywords
landslide
susceptiblity
earthflow
mass movement
hazard
debris flow
slope
failure
slide
earthquake
el nino
thunderstorm
usgs
fema
cdmg
GIS
Geographic Information Systems


Data Set Progress
COMPLETE


Originating Center
USGS


Data Center
Publications-Western Region,Geological Division, U.S. Geological Survey, U.S. Department of the Interior    [Information]
Data Center URL: http://geopubs.wr.usgs.gov/
Dataset ID: USGS Miscellaneous Field Studies Report MF-2385

Data Center Personnel
Name: CAROLYN A. DONLIN
Phone: 650-329-5015
Fax: 650-329-5119
Email: cdonlin at usgs.gov
Contact Address:
U.S. Geological Survey
Geology Division
345 Middlefield Road
City: Menlo Park
Province or State: California
Postal Code: 94025
Country: USA



Distribution
Distribution_Media: Online (HTTP)
Distribution_Size: 640 KB
Distribution_Format: ArcInfo GRID
Fees: None

Distribution_Media: Online (HTTP)
Distribution_Size: 1 MB
Distribution_Format: Shapefile
Fees: None

Distribution_Media: Online (HTTP)
Distribution_Format: ArcInfo Export
Fees: None


Personnel
RICHARD J. PIKE
Role: DIF AUTHOR
Role: TECHNICAL CONTACT
Phone: 650-329-4947
Email: rpike at usgs.gov
Contact Address:
U.S. Geological Survey
Mail Stop 975
345 Middlefield Road
City: Menlo Park
Province or State: CA
Postal Code: 94025
Country: USA


PROJECT CHIEF SCIENTIST USGS WESTERN EARTH SURFACE PROCESSES TEAM
Role: TECHNICAL CONTACT
Contact Address:
U.S. Geological Survey
345 Middlefield Road
Menlo Park Science Center, California
City: Menlo Park
Province or State: CA
Postal Code: 94025-3591
Country: USA


Extended Metadata Properties
(Click to view more)

Creation and Review Dates
DIF Creation Date: 2003-03-03
Last DIF Revision Date: 2018-05-11



-->