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Volcanic Explosively Index of VEI
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| VEI | Description | Plume Height | Volume | Classification | |
| 0 | non-explosive | <100 m | 1000s m3 | Hawaiian | |
| 1 | gentle | 100-1000 m | 10,000s m3 | Haw/Strombolian | |
| 2 | explosive | 1-5 km | 1,000,000s m3 | Strom/Vulcanian | |
| 3 | severe | 3-15 km | 10,000,000s m3 | Vulcanian | |
| 4 | cataclysmic | 10-25 km | 100,000,000s m3 | Vulc/Plinian | |
| 5 | paroxysmal | >25 km | 1 km3 | Plinian | |
| 6 | colossal | >25 km | 10s km3 | Plin/Ultra-Plinian | |
| 7 | >25 km | 100s km3 | Ultra-Plinian | ||
| 8 | >25 km | 1,000s km3 | Ultra-Plinian | ||
The VEI is the eruption magnitude scale that volcanologists use to rate eruptions. It is based on a number of things that can be observed during an eruption. | |||||
Adapted from VEI Scale at: http://volcano.und.nodak.edu/vwdocs/eruption_scale.html |
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