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Nearly 2,000 years ago, when Rome was at its peak, a volcano erupted on New Zealand's North Island with such violence it was thought to have cast a pall over the empire's lands half a world away.
A seventh shard, formed from an earlier eruption of the same volcano, helped the team pinpoint their exact origins, and helped confirm the timing of the explosive event.– one of the largest and most energetic eruptions on Earth in the past 5,000 years – has been surprisingly hard to pin down.suggest a distant volcanic eruption clouded their skies, half a world away: the Sun rose"red as blood and lacking light" and"the heavens were ablaze", two scribes wrote.
Sulfur is ejected from volcanoes all over the world though, so it's not nearly as precise as scientists would like. Radiocarbon dates of tree logs entombed infrom the Taupō eruption refined its timing to around 232 CE . Fruits and seeds on those preserved trees, and their lack of darker, outer latewood, suggested the volcano blew its top in late summer or autumn, but the year of the eruption was still disputed.
The Ōruanui glass, being centuries older but made of the same material, was likely unearthed from the Taupō volcano and expelled"A massive eruption plume would have sent a huge volume of volcanic particles into the air where they would have been widely dispersed by the wind,"
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