SUBDUCTION ZONE AND CRUSTAL DYNAMICS OF WESTERN WASHINGTON: A TECTONIC MODEL FOR EARTHQUAKE HAZARDS EVALUATION
By Dal Stanley, Antonio Villaseñor, and Harley Benz
Geological Setting
Gravity and Magnetic Maps of Washington
Magnetotelluric Profiles
Faults and Seismicity
Velocity Model Construction
Velocity Model 2D Cross-sections
Juan de Fuca Plate
Olympic Mts. Sedimentary Complex
Juan de Fuca Plate Arch
Seattle Basin and SWCC
Crustal Terrane Boundary
3D Visualization of Velocity Results
Sedimentary Basins and SWCC
General Results From 3D Visualization of Cross-sections
S-wave Model
Interpretive Geological Cross-sections
East-west Transect Interpretation
Subduction Thrust Frictional States
North-South Transect Interpretation
Comparison of Cascadia With Other Subduction Zones
Implications for Interplate and Crustal Seismic Hazards
Subduction Zone Source Ground Motions
Seismicity Patterns
Deformation Modeling
Model Construction
Model Traction Limits
Model Stress Results
Pn Anistropy
Plate Interactions
Surface Velocities and Fault Slip Rates
Stress Origins and Seismicity in the Puget Lowland
1100 yr B.P. Deformation
Appendix A-Resolution Tests
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