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#1 Federal
PROBZONES - Generalized 100- and 500-year flood zones for Seaside, Oregon, determined by probabilistic tsunami hazard analysis
- Organization: Department of the Interior
- Dataset Last Updated: October 08, 2021 at 12:00 AM
PROBZONES is a generalized polygon layer outlining areas in the Seaside-Gearhart, Oregon, area subject to the 100-year and 500-year flood as determined by probabilistic tsunami hazard analysis (PTHA).
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Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: August 01, 2026 at 05:53 AM
#2 Federal
H04612: NOS Hydrographic Survey , 1926-12-31
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Dataset Last Updated: December 31, 1926 at 12:00 AM
The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe navigation and to provide...
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Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: May 06, 2026 at 08:17 AM

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