What is the magnitude of a volcanic eruption in krakatoa, indonesia august 27, 1883?

Krakatau volcano (Indonesia) is well known for its catastrophic 1883 eruption. The result of this eruption was 36,000 deaths. This eruption has been assigned a VEI (Volcanic Explosivity Index) of 6 (or colossal). VEI is a 0 to 8 index of increasing explosivity. VEI of 6 means : a plume height over 25 km and a displacement volume : 10 to 100,000 km³. The total energy released during the eruption was equivalent to 200 megatons of TNT.

Answer: VEI of 6.