Fig. 1

Flowchart depicting the procedure for a full probabilistic spatio-temporal volcanic hazard assessment. a Step ‘0’ (Data files for R) and Step ‘0.5’ (R). b Step ‘1’ (Spatial probability analysis). c Step ‘2’ (Temporal probability analysis). d Step ‘3’ (Probabilistic volcanic hazard analysis) and Step ‘3.5’ (Integration). White rectangles show all the commands, files and products/subproducts created for each step. Grey rectangles depict the outputs of each step that will be used as inputs for any subsequent step. Solid lines with arrows are shown where the program performs the routine automatically. Dashed lines with arrows are shown where the user has to define the input parameters