Top 12: Most Recent Supermassive Volcanic Events

A supervolcano is any volcano capable of producing a volcanic eruption with an ejecta volume greater than 1,000 km³ (240 mi³). Volcanic eruptions are classified using the Volcanic Explosivity Index, or VEI: VEI 8 eruptions are colossal events that throw out at least 1,000 km³ (240 mi³) Dense Rock Equivalent (DRE) of ejecta. VEI 7 eruptions eject at least 100 km³ (24 mi³) DRE. This eruptions typically cover huge areas with lava and volcanic ash …

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