The blast, which has been estimated at the equivalent of around 15 megatons of TNT is widely thought to have been caused by a meteor a few tens of metres across exploding in mid-air.

这次爆炸，其爆炸能量估计相当于约1500万吨的TNT，广泛认为是由跨度为数十米的一颗流星在半空中爆炸所造成的。

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By analyzing the white pumice for geochemical clues, the team found that the Millennium Eruption actually emitted a large amount of sulfur into the atmosphere: an estimated 45 megatons.

通过分析白色浮石的地球化学线索，研究小组发现，“千年大喷发”实际上向大气中排放了大量的硫：大约45兆吨。

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By analyzing the white pumice for geochemical clues, the team found that the Millennium Eruption actually emitted a large amount of sulfur into the atmosphere: an estimated 45 megatons.

通过分析白色浮石的地球化学线索，研究小组发现，“千年大喷发”实际上向大气中排放了大量的硫：大约45兆吨。

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