Why was the Tongan volcanic eruption so huge?
The Tongan volcano erupting the day before the massive explosion Source: Twitter-TuoteroSismico
Scientists are now investigating how Tonga's Hunga Tonga-Hunga Ha'apai volcano was able to send a shock wave which completely circumnavigated the globe. The sheer size of the explosion is astonishing people around the world - but why was it so huge?
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