Oregon Department of Geology and Mineral Industries 2018 raster digital data Oregon Department of Geology and Mineral Industries Open-File Report Open-File Report O-18-02 Portland, Oregon, USA Oregon Department of Geology and Mineral Industries http://www.oregongeology.org Oregon Department of Geology and Mineral Industries 2018 file geodatabase Oregon Department of Geology and Mineral Industries Open-File Report Open-File Report O-18-02 Portland, Oregon, USA Oregon Department of Geology and Mineral Industries http://www.oregongeology.org/ Probability of Permanent ground deformation (ground failure) estimates due to earthquake-induced landslides are based on the methods outlined in the Hazus Earthquake Technical Manual (FEMA, 2011) For use in assessing potential damage to buildings and infrastructure resulting from an earthquake. Probability of Permanent Ground Deformation data is accompanied with a Permanent Ground Deformation value. See accompanying geodatabase and the CSZ_M9p0_PGD_landslide_wet raster dataset. Landslides can occur without seismic activity. This data should not be used as an indication of landslide susceptibility. 2018 Complete None planned -123.504198 -121.647212 45.809166 44.854005 ISO 19115 Topic Category geoscientificinformation Oregon Geospatial Enterprise Office Metadata Keyword Thesaurus landslide landslide risk lateral spread earthquake hazard earthquake risk Oregon Geospatial Enterprise Office Metadata Keyword Thesaurus Clackamas Multnomah Washington Oregon Geospatial Enterprise Office Metadata Keyword Thesaurus Land surface subsurface subsoil Oregon Geospatial Enterprise Office Metadata Keyword Thesaurus None REPORT DATA: This product is for informational purposes and may not have been prepared for or be suitable for legal, engineering, or surveying purposes. Users of this information should review or consult the primary data and information sources to ascertain the usability of the information. This publication cannot substitute for site-specific investigations by qualified practitioners. Site-specific data may give results that differ from the results shown in the publication. See the accompanying text report for more details on the limitations of the methods and data used to prepare this publication. Oregon Department of Geology and Mineral Industries mailing and physical address

800 NE Oregon Street Suite 965

Portland Oregon 97232 USA 1 971 673 1555 1 971 673 1562 dogami-info@oregon.gov When contacting DOGAMI about this data set, please reference the data set title or other identifying information in your correspondence. DOGAMI publications can be downloaded from http://www.oregongeology.org John Bauer Oregon Department of Geology and Mineral Industries Geohazards Analyst jpeg image (.jpg) This work was funded on behalf of Regional Disaster Preparedness Organization with an Urban Area Security Initiative grant for the Portland Metropolitan Region. Unclassified Probability of Permanent ground deformation is an estimate of the probability of ground failure that could occur at a site, given generalized geologic conditions and assumptions on site ground motion. In practice, local site variations may differ significantly from our generalized assumptions, such as anthropogenic modifications to surface water drainage. Known boundary conditions occur in the dataset, typically on 7.5-minute quadrangle boundaries, due to the heterogeneity of the geologic source data available for the study area. The Hazus AEBM model returns a permanent ground deformation and ground failure probability for a given peak ground acceleration, liquefaction susceptibility setting, and landslide susceptibility setting. We verified that the pointfile outputs of the Hazus AEBM model were consistent with the continuous raster data generated by the tool used to generate this dataset (Sharifi-Mood and others). The three-county area is covered in its entirety. not applicable Oregon Department of Geology and Mineral Industries vector digital data Oregon Department of Geology and Mineral Industries Digital Data OGDC-6 Portland, Oregon Oregon Department of Geology and Mineral Industries http://www.oregongeology.org/pubs/dds/p-OGDC-6.htm 2015 Oregon Department of Geology and Mineral Industries 2017 Release 3 Oregon Department of Geology and Mineral Industries Digital Data Portland, Oregon Oregon Department of Geology and Mineral Industries Geology data from Oregon Geologic Data Compilation (DOGAMI, 2015) was updated with mapped landslide information contained in Statewide Landslide Information Database for Oregon (DOGAMI, 2017). Geologic groups, including "existing landslides", were then categorized into A, B, C designations based on the groundwater level (wet scenario, dry scenario), as specified in Table 4.15 of the FEMA Hazus Earthquake Technical Manual (FEMA, 2011). Data were converted to a 10-ft raster grid for use in Hazus model. A raster slope surface of the study area was created from available lidar bare-earth surface elevation model, and where not available, from the USGS 10-meter DEM. Cell size was set to 10 ft. The two datasets in the previous process steps, and the site peak ground acceleration data for a Cascadia Subduction Zone M 9.0 earthquake (CSZ_M9p0_pga_site), were provided as inputs to the Soil Deformation tool developed by Sharifi-Mood and others. The tool returns permanent ground deformation (in cm) from earthquake-induced landslide, along with a probability of occurrence. Oregon Department of Geology and Mineral Industries mailing and physical address

800 NE Oregon Street Suite 965

Portland Oregon 97232 USA 1 971 673 1555 1 971 673 1562 dogami-info@oregon.gov When contacting DOGAMI about this data set, please reference the data set title or other identifying information in your correspondence. DOGAMI publications can be downloaded from http://www.oregongeology.org Raster Grid Cell NAD 1983 HARN Oregon Statewide Lambert Feet Intl 43.0 45.5 -120.5 41.75 1312335.958005249 0.0 coordinate pair 0.0000000266012656346959 0.0000000266012656346959 foot D North American 1983 HARN GRS 1980 6378137.0 298.257222101 FEMA, 2011 Earthquake-induced landslide model Federal Emergency Management Agency, 2011, Hazus-MH 2.1 Technical manual, Earthquake model: Washington, D.C., 718 p. VALUE Probability of ground deformation due to earthquake-induced landslide, in percent FEMA, 2011 Oregon Department of Geology and Mineral Industries mailing and physical address

800 NE Oregon Street Suite 965

Portland Oregon 97232 USA 1 971 673 1555 1 971 673 1562 dogami-info@oregon.gov When contacting DOGAMI about this data set, please reference the data set title or other identifying information in your correspondence. DOGAMI publications can be downloaded from http://www.oregongeology.org Although these data have been processed successfully on a computer system at the Oregon Department of Geology and Mineral Industries, no warranty expressed or implied is made by DOGAMI regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. Oregon Department of Geology and Mineral Industries mailing and physical address

800 NE Oregon Street Suite 965

Portland Oregon 97232 USA 1 971 673 1555 1 971 673 1562 dogami-info@oregon.gov When contacting DOGAMI about this data set, please reference the data set title or other identifying information in your correspondence. DOGAMI publications can be downloaded from http://www.oregongeology.org Oregon Department of Geology and Mineral Industries Metadata Standard 1.4 None None None None None