FEMA's Tsunami Pilot Study developed modernized flood hazard maps for the Seaside/Gearhart, Oregon area. The spatial data results from an interagency effort involving FEMA, USGS, NOAA, and several universities and consultants. The dataset provides GIS files and visualization layers for Google Earth.
Use Cases
- Assessing coastal community tsunami risk based on the improved Probabilistic Tsunami Hazard Analysis (PTHA) methodology.
- Visualizing flood hazard zones for emergency planning using the provided Google Earth layers.
- Informing guidelines for future FEMA flood insurance rate maps based on the pilot study's recommendations.
- Comparing modern tsunami hazard assessments with older methodologies for a typical Pacific Coast community.
Strengths
- Data is the product of a multi-agency FEMA-led pilot study involving USGS, NOAA, and academic partners.
- Focuses on a representative coastal community for the Pacific Coast from Cape Mendocino to the Strait of Juan de Fuca.
- Provides data in standard GIS formats and includes files for visualization in Google Earth.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count and file size are unknown, which may limit suitability assessment.
- Last update date is unknown; freshness unverified.
Provenance
- Source
- Federal Emergency Management Agency (FEMA) Tsunami Pilot Study Working Group, with collaboration from USGS, NOAA, and other institutions.
- Collection Method
- Developed as part of FEMA's Map Modernization Program to create improved tsunami hazard assessment guidelines.
- Time Range
- null
- Freshness
- null
- Geography
- Seaside and Gearhart, Oregon, USA, as a representative area for the Pacific Coast from Cape Mendocino to the Strait of Juan de Fuca.