USGS, NOAA, FEMA

U.S. Geological Survey
Data Series 236
Version 1.0

Seaside, Oregon, Tsunami Pilot Study—Modernization of FEMA Flood Hazard Maps: GIS Data

DATA CATALOG

GIS data files

Introduction

Each GIS data theme is listed with a brief description, links to illustrations, metadata files, and downloadable files. The data were compiled in ArcGIS (version 9.1 ESRI, 2005). The downloadable files have been compressed with Winzip and may be extracted with Winzip on Microsoft Windows operating systems. The numbers following ".zip" indicate the size of the downloadable file. Downloadable files include data, metadata, projection parameters, and a browse graphic. Metadata is provided in text, hypertext mark-up language (html), frequently-asked-questions (FAQ), and extensible mark-up language (xml) formats. Projection parameters are listed in each .prj file. Browse graphics are JPEG or GIF images. The file size is listed for links to any files on this site that exceed 60 KB.

Point, line, and polygon features are shapefiles in unprojected geographic coordinates (decimal degrees) with horizontal datum NAD83. The compressed download file for a shapefile includes files with standard extensions .shp (shape), .shx (shape index), .dbf (dBASE), .sbn (spatial bin), and .sbx (spatial bin index).

Raster data layers (Arcinfo grids) are provided as xyz coordinate files (.xyz) and as ArcGIS ASCII raster files (.asc). Files with the .asc extension can be converted to Arcinfo grids with the ArcGIS ASCII to raster tool.

Images are georeferenced TIFF files in UTM Zone 10 coordinates with datum NAD83. The download file for a TIFF image includes the image (.tif), the world registration file (.tfw), as well as the usual projection , metadata, and browse files.

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ESRI Arcmap and ArcReader Files. To view selected data themes with ESRI products Arcmap or ArcReader, download seaside.zip (compressed, 16 MB; uncompressed, 28 MB) and unzip with Winzip (extract with "use folder names" option) to an unused directory. Seaside.mxd is viewed with the licensed product ArcGIS. Seaside.pmf is viewed with ESRI ArcReader, which may be downloaded without charge from http://www.esri.com/software/arcgis/arcreader/. The data layers are included in the zip file.

Google Earth Files. Entries labeled kmz are links to files that may be viewed with Google Earth, a virtual globe data viewer. SeasideGIS.kmz (3 MB) includes all the kmz files listed in the table below. A free version of Google Earth (v. 3 or 4 beta) may be downloaded from http://earth.google.com/download-earth.html. Selecting the kmz link will open Google Earth and display the data layer with its legend (if available). The data layers are listed in the table of contents under Places > Temporary Places, with on/off checkmarks and a transparency control. See http://earth.google.com/support for other instructions for the interface.

Data Use Constraints. The data, digital results, GIS layers, and map products in this database have been created specifically as part of a pilot study for FEMA's modernization of Flood Insurance Rate Maps (FIRMs) project (Tsunami Pilot Study Working Group, 2006). The results of the pilot study are intended to help FEMA draft new guidelines related to tsunami flooding for Coastal Flood Hazard Analysis and Mapping for the Pacific Coast of the United States. The results are intrinsically probabilistic and designed according to FEMA flood zone specifications: annual probabilities of exceedance of 1 percent and 0.2 percent. The data, digital results, GIS layers, and map products are not intended for other uses. In particular, the 1 percent and 0.2 percent annual exceedance probability tsunami flood maps are not to be used for emergency planning, evacuation, or other insurance purposes. Please refer to the National Tsunami Hazard Mitigation Program tsunami inundation maps for use in emergency planning.

None of the data presented is intended for navigational purposes. Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government. Use of information from this publication concerning proprietary products or the tests of such products for publicity or advertising purposes is not authorized. All wave heights are relative to mean high water.

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Data Description

Data Catalog
Introduction
 
  -ArcGIS Arcmap and ArcReader Files
-Google Earth Files
-Data Use Constraints
  GIS data files
  -Historical tsunamis
-Seaside DEM
-Inundation and Propagation
-PTHA Probability Surfaces
-PTHA flood maps
-Other Data

References


see also:
USGS OFR 2006-1234:
Seaside, Oregon, Tsunami Pilot Study - Modernization of FEMA Flood Hazard Maps

USGS Western Coastal & Marine Geology (WCMG)

NOAA Center for Tsunami Research

FEMA National Flood Insurance Program

GIS Data Files

Table of GIS Data Files
GIS Theme Description Data Preview Metadata Compressed Files

Right-click (Windows) or click-and-hold (Macintosh) to download files from web

Historical Tsunami Data Top | GIS data files
Tsunami Deposits of Seaside, Oregon (Fiedorowicz and others) html, kmz (99 kb) text html FAQ xml tsunami_deposits.zip
Alaska 1964 Estimated Tsunami Inundation Line at Seaside, Oregon (Horning) html, kmz text html FAQ xml alaska1964_inundation.zip
Alaska 1964 Tsunami Observations at Seaside, Oregon (Horning) html, kmz text html FAQ xml alaska1964_obs.zip
Alaska 1964 Tsunami Runup Heights at Seaside, Oregon (Horning) html, kmz text html FAQ xml alaska1964_runup.zip
FEMA Flood Insurance Rate Map: City of Gearhart, Oregon (1999) html, kmz (2 MB) text html FAQ xml f4100300001d.zip (0.5 MB)
FEMA Flood Insurance Rate Map:City of Seaside, Oregon, panel 1 of 2 (1981) text html FAQ xml f4100320001c.zip (2 MB)
FEMA Flood Insurance Rate Map:City of Seaside, OR, panel 2 of 2 (1981) text html FAQ xml f4100320002c.zip (1 MB)
Digital Elevation Model (DEM) development Top | GIS data files
Shoreline for the Pacific Northwest Region html text html FAQ xml shoreline_pacnw.zip (2 MB)
Historic Shorelines for the Seaside, Oregon, area for various years between 1939 and 2000 html

kmz mhw (181 kb)

kmz mllw

text html FAQ xml historicshorelines.zip (300 kb)
Pacific Northwest Water-Level Stations and Tidal Datum Distributions html, kmz text html FAQ xml tidestations.zip
Water-Level Probability Distributions for the Seaside, Oregon Region html text html FAQ xml waterlevel_probability.zip (5 MB)
Grid Development Limits for the Seaside, Oregon, Tsunami Pilot Study html, kmz text html FAQ xml dem_limits.zip
Data Sources for the Seaside, Oregon, Digital Elevation Model html, kmz (89 kb) text html FAQ xml dem_sources.zip (85 kb)
Digital Elevation Models for the Seaside, Oregon, Pilot Study (36-, 6-, and 1/3-second resolutions) html, kmz (0.5 MB) text html FAQ xml seasdemsasc.zip (15 MB)

seasdemsxyz.zip (20 MB)

GIS Theme Description Data Preview Metadata Compressed Files

Right-click (Windows) or click-and-hold (Macintosh) to download files from web

Tsunami propagation and inundation modeling Top | GIS data files
Inundation Model Map Limits for the Seaside, Oregon, Tsunami Pilot Study html text html FAQ xml map_limits.zip
Far-field earthquake sources for the Seaside, Oregon, Tsunami Pilot Study html, kmz (80 kb) text html FAQ xml farfield_sources.zip (70 kb)
Near-field earthquake sources for the Seaside, Oregon, Tsunami Pilot Study html

text html FAQ xml

nearfield_sourcesasc.zip (6 MB) nearfield_sourcesxyz.zip (11 MB)
Maximum Wave Heights at Seaside, Oregon, based on Far-field Sources html

text html FAQ xml

farfield_maxhasc.zip (1MB) farfield_maxhxyz.zip (1MB)
Maximum Wave Heights at Seaside, Oregon, based on Near-field Sources html

text html FAQ xml

nearfield_maxhasc.zip (1 MB) nearfield_maxhxyz.zip (2 MB)
Maximum Tsunami Velocity Zones at Seaside, Oregon based on Far-field Sources html text html FAQ xml farfield_maxvzonesasc.zip (0.2 MB) farfield_maxvzonesxyz.zip (42 MB)
Maximum Tsunami Velocity Zones at Seaside, Oregon based on Near-field Sources html text html FAQ xml nearfield_maxvzonesasc.zip (0.5 MB) nearfield_maxvzonesxyz.zip (5 MB)
Probabilistic Tsunami Hazard Analysis probability surfaces Top | GIS data files
grids of annual tsunami probability for wave heights from 0.5 to 10.5 meters at 0.5-meter intervals - unmodified case html text html FAQ xml iygasc.zip (0.5 MB)

iygxyz.zip (2 MB)

grids of annual tsunami probability for wave heights from 0.5 to 10.5 meters at 0.5-meter intervals using only Model 1 of Alaska-Aleutian segmentation

iygaa1asc.zip (0.5 MB)

iygaa1xyz.zip (2 MB)

grids of annual tsunami probability for wave heights from 0.5 to 10.5 meters at 0.5-meter intervals using a mean inter-event time less than 520 years for M~9 subduction zone earthquakes.

iygtd480asc.zip (0.5 MB)

iygtd480xyz.zip (2 MB)

grids of annual tsunami probability for wave heights from 0.5 to 10.5 meters at 0.5-meter intervals using a mean inter-event time greater than 520 years for M~9 subduction zone earthquakes.

iygtd560asc.zip (0.5 MB)

iygtd560xyz.zip (2 MB)
GIS Theme Description Data Preview Metadata Compressed Files

Right-click (Windows) or click-and-hold (Macintosh) to download files from web

Probabilistic Tsunami Hazard Analysis 100- and 500-year floods Top | GIS data files
maximum tsunami wave height for annual probabilities of 1.0 percent and 0.2 percent (100- and 500-year floods) - unmodified case html 100 kmz

html 500 kmz (0.3 MB)

text html FAQ xml

exrate.zip (0.4 MB)

maximum tsunami wave height for annual probabilities of 1.0 percent and 0.2 percent (100- and 500-year floods) using only Model 1 of Alaska-Aleutian segmentation html exrateaa1.zip (0.3 MB)
maximum tsunami wave height for annual probabilities of 1.0 percent and 0.2 percent (100- and 500-year floods) using a mean inter-event time less than 520 years for M~9 subduction zone earthquakes. html exratetd480.zip (0.8 MB)

maximum tsunami wave height for annual probabilities of 1.0 percent and 0.2 percent (100- and 500-year floods) using a mean inter-event time greater than 520 years for M~9 subduction zone earthquakes. exratetd560.zip (0.3 MB)
100- and 500-year flood zones from PTHA model html, kmz (71 kb) text html FAQ xml probzones.zip (88 kb)
Other data sources Top | GIS data files
Oregon Geospatial Enterprise Office (GEO) http://www.oregon.gov/DAS/IRMD/GEO/

Oregon Department of Geology and Mineral Industries http://www.oregongeology.com/

University of Oregon Libraries http://libweb.uoregon.edu/map/

USGS Seamless Data Distribution System http://seamless.usgs.gov/

NOAA National Ocean Service http://www.nos.noaa.gov/

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