Fig. 3
From: TephraProb: a Matlab package for probabilistic hazard assessments of tephra fallout
Eruptive history of Puyehue-Cordón Caulle volcanic system as recorded in the GVP database. a Screenshot of the GUI shows the number of eruptions per VEI class for all eruptions recorded in the GVP, where U stands for undefined and O for other. Alternative plots include, cumulative number of eruptions considering (b) all eruptions and (c) the most recent complete segment of the record, (d) and probability of eruption through time considering a Poisson model for all eruptions (black line, using the record shown in (c)), eruptions of VEI 2 (red line, completeness at 1880 A.D.), VEI 3 (green line, completeness at 1920 A.D.) and VEI 5 (orange line, completeness at 5000 B.C.)