Figure 10: The probability of volcanic disruption of the proposed repository, estimated using method 3, is shown for four curves, each calculated using a = 8 km2, t = 10,000 yr. Open triangles - data set 2; solid triangles - data set 1. Calculations using volcanoes formed less than 2 Ma only, labeled 2, are calculated using lt = 10 v/my; Calculations using volcanoes formed less than 5 Ma only, labeled 5, are calculated using lt = 5 v/my.