On behalf of the Incorporated Research Institutions for Seismology (IRIS) and of the organizing committee of the workshop entitled “Geophysical Hazards and Plate Boundary Processes in Central America, Mexico, and the Caribbean,” I thank AGU for providing funding for the workshop to supplement the core support from the U.S. National Science Foundation and the United States Agency for International Development. The workshop, which was held 24–28 October 2010 in Heredia, Costa Rica, was attended by 87 geophysicists and stakeholders from the public, private, and development sectors from 21 countries. We were able to outline and coordinate initiatives that will contribute to geophysical research and hazard mitigation in the region through international collaboration and to establish a forum to initiate efforts with the potential for immediate societal benefits.