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A team of
has said the volcano that erupted under the sea near Tonga in January set a
. The Tonga-Hunga Ha'apai volcano erupted on January the 15th. It was the
explosion ever recorded using
instruments and
. It was also the biggest to happen in the past 150 years. The scientists said the
may have been as large as the Krakatoa eruption that took place in Indonesia in 1883. Dr Robin Matoza from the University of California 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 modern
."