Seattle and Portland lie within the Puget-Willamette Lowland of western Washington and Oregon. This seismically active region overlies the Cascadia subduction zone, a source of damaging earthquakes and volcanic activity. The Lowland is also subject to landslides, depletion of groundwater, and pressure on coastal resources and nearshore habitats.
Produce geologic maps and research needed for the assessment of seismic shaking hazards, landslide potential, liquefaction, groundwater resources, and hydrocarbon potential in the urban corridor.
- Document structure and history of urban fault zones and basins
- Document lowland surficial deposits, processes and history
- Document geology of groundwater aquifers
- Document the lowland regional tectonic framework
- Compile results in a uniform, digital earth science database
Cooperators and Collaborators
- Washington Division of Geology and Earth Resources
- Oregon Department of Geology and Mineral Industries
- University of Washington
- Oregon State University
- Portland State University