Within the framework of the Intergovernmental Coordination Group for the Pacific Tsunami Warning and Mitigation System (ICG/PTWS), the Intergovernmental Oceanographic Commission (IOC) of UNESCO in cooperation with the Flanders Marine Institute (VLIZ), and the Hydrographic and Oceanographic Service of the Chilean Navy (SHOA) are organizing in Valparaiso, Chile, from 27 September to 1 October 2022, a training course entitled “Sea Level Data Sharing: Tools for an effective Regional Emergency Response”.