Probabilistic Source Selection for the Cascadia Subduction Zone

Results from a study supported by FEMA Region IX, March, 2017

Loyce M. Adams, Randall J. LeVeque, Donsub Rim, and Frank I. Gonzalez, University of Washington

This report has been submitted to FEMA Region IX as a final project report for a project on developing new methodologies for Probabilistic Tsunami Hazard Assessment (PTHA). We propose a methodology for taking a large number of realizations of potential future earthquakes (with associated probabilities) and producing good approximations to the resulting hazard curves and maps without doing a computationally- expensive fine-grid tsunami simulation for each realization.

Final report and additional figures: