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. 2022 Mar 2;84(3):35. doi: 10.1007/s00445-022-01534-y

Table 1.

List of input parameters used to calculate volume, VEI, eruption height, and eruption magnitude based on tephra fall thickness and grain size parameters of tephra fall samples

Isopach Isopleth
Exponential Power-law Weibull Exponential Power-law Weibull
Isopachs used (cm) 45, 10, 1.5, 0.5, 0.3, 0.10, 0.05
Isopleths used (cm) 1.65, 0.325, 0.13, 0.075
Break in slope (BIS) 4 2
Distal limit (C) 130
λ range 5–20 2–10
n range 0.2–20 0.5–2

A 10% error was applied to all thickness and diameter measurements and a 20% error on distal limit (C). Values of λ and n are within the ranges recommended by Bonadonna and Costa (2013)