Fig. 2

(a) Physical locations of the volcanoes attributed to the 74 eruptions included in our compilation, with individual volcanoes marked by triangles. Also shown is the number of \((M\ge 4)\) eruptions in our compilation corresponding to each 10° latitude zone. (b) Relationship between the ratio of total fall deposit volume (\({V}_{FALL}\)) to total volume erupted \((V)\) and eruption magnitude (\(M\)). (c) Relationship between the ratio of total ignimbrite volume \({(V}_{FLOW})\) to total volume erupted \((V)\) and eruption magnitude \((M)\). Error bars are marked in grey, and calculated according to the uncertainty estimates given in the source literature or assigned where these values were unavailable