A dramatic volcano eruption changed lives in Fiji 2,500 years ago. 100 generations have kept the story alive.
About 2,500 years ago, a volcanic eruption in Fiji triggered a massive tsunami. How do scientists know this? We examined the oral traditions of Fiji's Indigenous people, whose storytelling describes a volcanic eruption — an event that left behind geologic clues — and a tsunami, which didn't leave behind any physical traces that survive today, our new study finds.
When the clouds cleared, the people saw a new mountain had formed, its shape resembling a mound of earth in which yams are grown. This gave the mountain its name — Nabukelevu, the giant yam mound. So dramatic, so life-changing were the events associated with this eruption, the people who witnessed it told stories about it. These stories have endured more than two millennia, faithfully passed on across roughly 100 generations to reach us today.
Battle of the vuThe most common story about the 2,500-year-old eruption of Nabukelevu is one involving a"god" named Tanovo from the island of Ono, about 35 miles from the volcano. We conclude that the sequence in which these islands are said to have been created is likely to represent the movement of the ash plume from the eruption, as shown on the map below.
Other details in the oral traditions recall how one god threw a massive spear at his rival but missed, leaving behind a huge hole in a rock. This is a good example of how landforms likely predating the eruption can be retrofitted to a narrative.
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