Key term for Edexcel GCSE Geography B, used in Plate Boundaries and Hazards.
A relative logarithmic scale from 0 to 8 used to measure the magnitude and explosivity of a volcanic eruption.
Volcanic Explosivity Index (VEI) appears in Edexcel GCSE Geography B revision content for Hazardous Earth, especially Plate Boundaries and Hazards and Plate boundaries.
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