Nathan J. Wood Jeanne M. Jones 2015 Vector Digital Data Set (Polygon) Reston, VA U.S. Geological Survey https://doi.org/10.5066/F7CC0XWN Nathan J. Wood Jeanne M. Jones Seth Spielman Matt Schmidtlein 20150317 Publication (Journal) Proceedings of the National Academy of Sciences 112/17 online PNAS www.pnas.org/cgi/doi/10.1073/pnas.1420309112 The travel time map was generated using the Pedestrian Evacuation Analyst model from the USGS. The travel time analysis uses ESRI's Path Distance tool to find the shortest distance across a cost surface from any point in the hazard zone to a safe zone. This cost analysis considers the direction of movement and assigns a higher cost to steeper slopes, based on a table contained within the model. The analysis also adds in the energy costs of crossing different types of land cover, assuming that less energy is expended walking along a road than walking across a sandy beach. To produce the time map, the evacuation surface output from the model is grouped into 1-minute increments for easier visualization. The times in the attribute table represent the estimated time to travel on foot to the nearest safe zone at the speed designated in the map title. The bridge or nobridge name in the map title identifies whether bridges were represented in the modeling or whether they were removed prior to modeling to estimate the impact on travel times from earthquake-damaged bridges. In the U.S. Pacific Northwest, coastal communities are threatened by tsunamis associated with Cascadia subduction zone earthquakes. Maps of evacuation travel times within tsunami-hazard zones can be used by emergency managers and community planners to identify where to focus evacuation training and hazard education. 20150317 publication date Complete Not planned -124.355796191 -124.011333318 41.4648181221 39.9969862663 USGS Thesaurus tsunamis hazard preparedness hazards USGS Thesaurus vulnerability evacuation USGS Metadata Identifier USGS:58922a04e4b072a7ac13a846 Geographic Names Information System (GNIS) Humboldt County None. Please see 'Distribution Info' for details. Data are provided "as is" without any representations or warranties as to their accuracy, completeness, performance, merchantability, or fitness for a particular purpose. The entire risk associated with the results and performance of the data is assumed by the user. The U.S. Geological Survey, and all their partners shall not be responsible or liable to you for any loss or damage of any sort incurred in connection with your use of the data. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the US Government. Jeanne M. Jones U.S. Geological Survey mailing and physical

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Menlo Park CA 94025 USA 650-329-5635 jmjones@usgs.gov Environment as of Metadata Creation: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.1 (Build 4959) Service Pack N/A (Build N/A) No formal attribute accuracy tests were conducted. No formal logical accuracy tests were conducted. Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. A formal accuracy assessment of the horizontal positional information in the data set has not been conducted. A formal accuracy assessment of the vertical positional information in the data set has either not been conducted, or is not applicable. State of California 2009 Vector Digital Data Set Sacramento, CA CGS, Cal OES, Tsunami Research Center at USC http://www.conservation.ca.gov/cgs/geologic_hazards Digital and/or Hardcopy Resources 20090101 20091230 publication date hazard zone source information for tsunami inundation zone U.S. Department of Agriculture 2012 Raster Digital Data (Aerial Imagery) Washington, D.C. Geospatial Data Gateway https://gdg.sc.egov.usda.gov/ Digital and/or Hardcopy Resources 20090101 20121230 publication date NAIP imagery Source information used for land cover creation Watershed Sciences 2012 Raster Digital Data Set web Puget Sound Lidar Consortium http://pugetsoundlidar.ess.washington.edu/. Digital and/or Hardcopy Resources 20120101 20121230 publication date Lidar DEM Elevation information for the modeling U.S. Geological Survey 20120101 Vector Digital Data Set Reston, VA The National Map http://nhd.usgs.gov/data.html Digital and/or Hardcopy Resources 20120101 publication date water more refined water layer for the land cover internal 20120101 Vector Digital Data Set not published not published none Digital and/or Hardcopy Resources 20120101 observed buildings building footprints as barriers to travel in the model U.S. Fish and Wildlife Service 20100101 Vector Digital Data Set Washington, D.C. U.S. Fish and Wildlife Service https://www.fws.gov/wetlands/Data/State-Downloads.html Digital and/or Hardcopy Resources 20100101 publication date wetlands additional wetlands data for land cover U.S. Census TIGER Line 20000101 Vector Digital Data Set Washington, D.C. U.S. Census https://www.census.gov/geo/maps-data/data/tiger-line.html Digital and/or Hardcopy Resources 20000101 publication date roads Roads layers for land cover Run the modeling step to pre-process the digital elevation information and create the study area outline. 2014 Run the modeling step to preprocess the land cover, using the land cover layer extracted from the NAIP imagery as the base layer. The land cover base layer will be first on the list followed by the ancillary layers: wetlands, water, roads, and buildings. The tool will merge the layers in the list order from top to bottom; so, layers such as water bodies should be merged before a roads layer to keep any bridges in the roads layer (i.e., higher on the list) from being overlaid by a polygon in the water layer. In addition, the ancillary layers must be assigned a specific speed-conservation value (SCV), which represents the fraction of a maximum speed that could be achieved across the given land-cover type. If a standard LULC type is selected, its default SCV value will appear in the corresponding Default SCV Value field and can be edited, if desired. 2014 Run the modeling step to create the safe zone by extracting the tsunami hazard zone from the study area. Manually verify and edit the results. 2014 Run the path distance modeling tool using the pre-processed elevation and land cover and the safe zone. 2014 Run the modeling step to create the evacuation surface with the specified travel speed of 1.52 meters/second. 2014 Run the modeling step to create the time maps. 2014 Vector G-polygon 263 0.0197452242 0.0259336575 Decimal seconds D_WGS_1984 WGS_1984 6378137.0 298.257223563 Attribute Table Table containing attribute information associated with the data set. Producer defined TIME_min The TIME_min field represents the number of minutes of travel time to exit the hazard zone from the given location on the map. Time was determined by running the Pedestrian Evacuation Analyst model, which determines the travel time to safety from every location in the hazard zone to its nearest location in the safe zone. Producer defined 0 300 minutes The entity and attribute information provided here describes the tabular data associated with the data set. Please review the detailed descriptions that are provided (the individual attribute descriptions) for information on the values that appear as fields/table entries of the data set. The entity and attribute information was generated by the individual and/or agency identified as the originator of the data set. Please review the rest of the metadata record for additional details and information. none U.S. Geological Survey - ScienceBase mailing and physical

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Denver CO 80225 USA 1-888-275-8747 sciencebase@usgs.gov Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display 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. Vector Digital Data Set (Polygon) ArcGIS 10.1 https://doi.org/10.5066/F7CC0XWN None. No fees are applicable for obtaining the data set. 20200830 Jeanne M Jones U.S. Geological Survey, PACIFIC REGION Geographer mailing and physical

Mail Stop 531, 345 Middlefield Road

Menlo Park CA 94025 USA 650-329-5635 650-329-4722 jmjones@usgs.gov Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998