等级 | VEI-1 | VEI-2 | VEI-3 | VEI-4 | VEI-5 | VEI-6 | VEI-7 | VEI-8 |
喷出物体积约(km3) | 0.00001-0.001 | 0.001-0.01 | 0.01-0.1 | 0.1-1 | 1-10 | 10-100 | 100-1000 | 大于1000 |
喷发柱的高度(km) | 0.1-1 | 1-5 | 3-15 | 10-25 | 20-35 | 大于30 | 大于40 | 大于50 |