This is a research board. You don't need speculators like Sorcha Faal and Benjamin Fulford to find out known facts. Tonga volcano has been around for years. Under the ocean it is 20Km wide and 1800 m high, and that doesn't count the magma under it. https://theconversation.com/why-the-volcanic-eruption-in-tonga-was-so-violent-and-what-to-expect-next-175035

The amount of energy released by St. Helens, a much smaller blast, was 24 Megatons, about equal to 1600 Fat Boys. https://www.sidmartinbio.org/what-form-of-energy-is-released-in-a-volcanic-eruption/ Presumably that includes not just thermal energy but kinetic energy from the landslide.

Preliminary guesstimate of Tonga is 1000 Kilotons, but I think that is underestimated. St. Helens didn't make such a big ash cloud, which is a measure of vaporized rock. You also have to add the effects of the tsunami. https://www.smh.com.au/world/oceania/the-equivalent-of-1000-hiroshima-bombs-world-watched-a-tremendous-explosion-in-tonga-20220116-p59oka.html#:~:text=The%20energy%20of%20the%20Krakatau%201883%20eruption%20has,the%20largest%20hydrogen%20bomb%20ever%20detonated%20on%20Earth.