Stress rates in the central Cascadia subduction zone inferred from an elastic plate model

Details Stress rates in the central Cascadia subduction zone inferred from an elastic plate model Stress rates in the central Cascadia subduction zone inferred from an elastic plate model

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001georl..28.2125w&link_type=abstract

Geophysical Research Letters, Volume 28, Issue 10, p. 2125-2128

Physics

Geophysics

6

Mathematical Geophysics: Modeling, Seismology: Seismic Hazard Assessment And Prediction, Tectonophysics: Plate Boundary-General, Tectonophysics: Stresses-Crust And Lithosphere

Scientific paper

GPS vectors and surface tilt and uplift rates from northwestern Oregon and southwestern Washington are inverted to estimate rates of stress changes along the Cascadia thrust fault and base of the overriding plate using a finite thickness elastic plate model. The data are fit by elevated shear stress and Coulomb Failure Function (CFF) rates within 80 km of the trench. By contrast, an elastic half-space dislocation model does not fit as well and predicts significant amounts of locking and elevated CFF rates near the coast.

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