Input and output data related to DTC-T1 (i.e. Probabilistic Tsunami Forecasting, PTF) for the Site Demonstrator SD4 (the 2020 Samos-Izmir earthquake). A notebook is also provided on the DT-GEO GitLab repository at the following link: https://gitlab.com/dtgeo/site-demonstrators/site-demonstrator-4. To re-run it locally, the input data must be dowloaded. Please note that one file in the output folder, although being a product of the PTF workflow, is considered here as an input for the notebook, since the numerical simulations are not re-executed by the notebook.