Welcome to the 2026 GIS in Action Annual Conference hosted by the Oregon & SW Washington Chapter of the Geospatial Professional Network & Cascadia ASPRS.
The Pacific Northwest faces a major seismic hazard from a potential megathrust earthquake along the Cascadia Subduction Zone. Such an event could cause significant infrastructure damage and limit access to emergency services throughout the Portland metropolitan area. This project uses ArcGIS Pro to analyze how earthquake-related ground deformation may affect facilities and emergency transportation routes in Multnomah County, Washington County, and Clackamas County.
Spatial datasets of hospitals, emergency transportation routes, and earthquake hazard projections were analyzed using GIS overlay techniques to identify potential vulnerabilities in critical infrastructure. The results highlight areas where emergency response access may be limited following a major earthquake. This student study project demonstrates how GIS-based hazard analysis can support disaster preparedness and resilience planning in earthquake-prone regions. Potentially, further studies will be looked at for this topic.
