Numerical Modeling of the 2014 Oso, Washington, Landslide

Explore a detailed numerical simulation of the devastating 2014 Oso landslide in Washington state through this 21-minute conference talk from the AGU Fall Meeting. Dive into the D-Claw numerical model, which simulates landslide motion from initiation to deposition using a system of partial differential equations. Examine how the model incorporates state-dependent dilatancy and its effects on solid volume fraction and basal pore-fluid pressure. Compare alternative scenarios with varying initial solid volume fractions and their impact on landslide behavior. Gain insights into the factors that may have contributed to the catastrophic high-speed runout of the Oso event, including the potential role of prior slope deformation. Understand the behavioral bifurcation highly sensitive to initial conditions and its implications for predicting landslide outcomes.

Numerical Modeling of the 2014 Oso, Washington, Landslide.