The Oruanui eruption probably managed that, but a surer candidate is Sumatra's Toba blast, which released 2800 cubic kilometres of hot rock, ash and dust about 70,000 years ago.

奥努伊火山爆发就可能属于这一类，但是一个更有把握超级火山的候选者是苏门答腊岛的多巴火山爆炸。 约在70 000年以前，多巴火山在爆发时释放了2800立方公里的灼热的岩石、火山灰和尘埃。

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Among these is Toba Caldera, the site of the largest eruption in the past 2.5 million years.

其中的托巴火山(湖)是250万年来，地球上最大的火山爆发的发生地。

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The Huckleberry ridge eruption 2.1 million years ago - which was almost as large as the Toba blast - formed the Island Park caldera.

那里的哈克贝利山脉(Huckleberry ridge)在210万年前就曾经爆发过——其爆发的强度与多巴火山的爆发相类似——它形成了岛公园里面的火山喷口。

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But the investigation finds no changes in the composition of the sediments that would indicate a significant dip in temperatures in East Africa concurrent with the Toba eruption.

BBC: Toba super-volcano catastrophe idea 'dismissed'

Complicating the issue is the volcanic eruption of Toba, in Sumatra, around 74, 000 years ago, which injected so much sulfurous dust into the high atmosphere that it caused prolonged droughts that might have come close to wiping out many human populations.

WSJ: Matt Ridley on Early Humans Leaving Africa | Mind & Matter

Some tools were sandwiched in ash from the eruption of the Toba super-volcano in Indonesia that geologists can date very accurately to 74, 000 years ago.

BBC: Humans 'left Africa much earlier'