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Kinematics of interseismic deformation in the western United States

Kinematics of interseismic deformation in the western United States. Fred Pollitz, USGS Menlo Park. Collaborators: Patricia McCrory, Christine Puskas Doug Wilson. Active deformation of 1000-km wide plate boundary zone Crust/mantle rheology

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Kinematics of interseismic deformation in the western United States

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  1. Kinematics of interseismic deformation in the western United States Fred Pollitz, USGS Menlo Park Collaborators: Patricia McCrory, Christine Puskas Doug Wilson

  2. Active deformation of 1000-km wide plate boundary zone • Crust/mantle rheology • Survey of models of interseismic crustal deformation • Viscoelastic-cycle model of interseismic crustal deformation • Implications for Cascadia region • Outstanding issues

  3. Interseismic velocity field

  4. Interseismic velocity field

  5. Interseismic velocity field # velocity vectors PBO: 734 Puskas et al.: 1497 McCaffrey et al.: 545 Total: 2776

  6. Strain rate field

  7. Viscoelastic stratification

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