This workshop is gathering participants involved with NSF GeoPRISMS projects aimed at the Alaska-Aleutians subduction zone, to engage in interdisciplinary discussions that lead toward synthesizing research results. All approaches are welcomed including geophysics, geology, geochemistry and geodynamics. The workshop will include a mix of talks, posters, discussion sessions and meals to network and work toward GeoPRISMS science goals. Graduate students and postdocs are welcomed.