Puget Lowland fault zones and basins
Geologic, aeromagnetic, paleomagnetic, gravity, high-resolution topographic, and seismic surveys are underway to document the geologic structure of the Puget Lowland, with emphasis on the geometry of sedimentary basins and the location, length, and history of potentially active faults. The gravity image below outlines crustal blocks and block-bounding fault zones beneath Puget Sound (block uplifts are red, sediment-filled basins blue, and fault zones shown by white dots).
Puget Lowland regional studies
- Lowland aeromagnetic survey
- Regional gravity
- Crustal velocity structure -SHIPS experiment
- Active faults from the Earthquake Hazards Program
Seattle Fault geology and fault mapping
- City of Seattle, progress report
- Bainbridge Island geologic map
- Seattle Fault Zone geologic mapping Bremerton area
- GeoMapNW, University of Washington
- LIDAR discovers active faults
- Trenching of active fault strands by Earthquake Hazards Program
- Toe Jam Hill fault strand
- Toe Jam publication - Seattle Fault Zone Seismic profiles from USGS Earthquake Hazards Program
Seattle Basin
- Geologic map of northeastern Seattle (part of the Seattle North 7.5' x 15' quadrangle), King County, Washington
- How the jello-shakes depends on the shape of the bowl: a three-dimensional view of the Seattle Basin
- SHIPS experiment
- 3-D inversion
