“…Furthermore, at some volcanoes, such as Kīlauea, there is evidence for past explosive eruptions that have no historically observed equivalent in intensity (e.g. Swanson et al, 2012Swanson et al, , 2014May et al, 2015) and the conditions that accompany such intensely explosive eruptions remain largely unresolved. Since a number of important processes are directly dependent on the decompression rate, such as bubble nucleation, bubble growth, and fragmentation itself (Parfitt and Wilson, 1995;Mangan and Cashman, 1996;Mangan et al, 2014;Gonnermann, 2015), robust constraints on this parameter will enable a fuller understanding of the processes that determine the intensity of explosive eruptions driven by magmatic volatiles.…”