From: Probabilistic Volcanic Ash Hazard Analysis (PVAHA) I: development of the VAPAH tool for emulating multi-scale volcanic ash fall analysis
Category
Events
VEI 4
VEI 5
VEI 6
VEI 7
Caldera
49
0.118
0.024
0.003
Large cone
209
0.500
0.177
0.042
0.007
Lava dome
8
0.017
0.010
0.000
Shield
18
0.049
Small cone
4
0.014