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Scientists have said the Tonga volcano that erupted under the
in January set a
. The Tonga-Hunga Ha'apai volcano was the biggest explosion
recorded using modern
. It was also the biggest to happen in the
150 years. The scientists said it may have been as
as the Krakatoa eruption that took place in 1883. Researcher Dr Robin Matoza said: "Tonga was a
global event, just as Krakatoa was. But we've now got all
geo-physical [recording] systems, and they recorded
that was really [unmatched] in the
data."
