[Darnright]

https://t.me/beholdisraelchannel/6062

NASA estimates that the magnitude of the eruption of the underwater volcano near Tonga over the weekend was equivalent to ten megatons of TNT, more than 500 times the atomic bomb dropped on Hiroshima in 1945 and probably also the most powerful eruption of a volcano. Since 1883.

[Steve Van Doorn]

The energy output can be estimated based on the size of quake.

2 x 10^19 Joules math for Mount Pinatubo VEI-6 eruption

2 x 10^12 joules Tonga
VEI (likely a 5) link gives estimated strength based on quake