Evidence of large submarine volcanic eruption 520 kyrs ago in Aegean

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The recent discovery of a tuff deposit around Santorini indicates a massive submarine volcanic eruption approximately 520,000 years ago, significantly larger than the Minoan eruption. Dr. Steffen Kutterolf from the GEOMAR Helmholtz Centre for Ocean Research and Dr. Timothy Druitt from the University of Clermont-Auvergne led the expedition, revealing a deposit volume exceeding 90 cubic kilometers and thickness up to 150 meters. This eruption is six times larger than the Minoan eruption and ten times larger than the Hunga Tonga-Hunga Ha'apai eruption of January 2022. The Santorini eruption is estimated to have a Volcanic Explosivity Index (VEI) of 6, comparable to Krakatoa's 1883 eruption.

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Evidence of one of the largest explosive eruptions ever recorded in the Aegean Sea​

https://phys.org/news/2024-01-evidence-largest-explosive-eruptions-aegean.html
the Late Bronze Age eruption of Santorini around 3,600 years ago probably triggered the downfall of the Minoan civilization on Crete—an important event for both volcanology and archaeology," says Dr Steffen Kutterolf, a volcanologist at the GEOMAR Helmholtz Centre for Ocean Research in Kiel.

Together with Dr Timothy Druitt from the University of Clermont-Auvergne, he led the expedition to Santorini. The international team of scientists discovered a new deposit around the island, indicating a much larger submarine eruption around 520,000 years ago.

Dr Kutterolf says, "The newly discovered tuff deposit has a volume of more than 90 cubic kilometers and is up to 150 meters thick. This makes it six times larger than the pyroclastic flow deposits of the Minoan eruption and ten times larger than those of the Hunga Tonga-Hunga Ha'apai volcanic eruption of 22 January 2022."
https://www.nature.com/articles/s43247-023-01171-z

I wonder it ranks against Tambora (1815) and Krakatoa (1883).

https://en.wikipedia.org/wiki/1815_eruption_of_Mount_Tambora - estimate of 37–45 km3 (8.9–10.8 cubic miles) of dense-rock equivalent (DRE) material into the atmosphere, (Source: Wikipedia article). Not sure how to equate to the Santorini value.

https://en.wikipedia.org/wiki/1883_eruption_of_Krakatoa
 
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an important event for both volcanology and archaeology,"

And important for the Minoans.

Is this unusual? If I looked back, say, a million years, I'd expect there to be 10,000 once-a-century events, 1000 once-per- millennium events. And in a million, a once-per-million years event.
 
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There's always something, given enough time.
 
BillTre said:
There's always something
In the words of Roseanne Roseannadanna, yes.

A quick look shows over the last 50-100M years there is a Large Igneous Province. Is finding one (possibly smaller) that is 500K years old unusual? Maybe.
 
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Astronuc said:

Evidence of one of the largest explosive eruptions ever recorded in the Aegean Sea​

https://phys.org/news/2024-01-evidence-largest-explosive-eruptions-aegean.html

https://www.nature.com/articles/s43247-023-01171-z

I wonder it ranks against Tambora (1815) and Krakatoa (1883).

https://en.wikipedia.org/wiki/1815_eruption_of_Mount_Tambora - estimate of 37–45 km3 (8.9–10.8 cubic miles) of dense-rock equivalent (DRE) material into the atmosphere, (Source: Wikipedia article). Not sure how to equate to the Santorini value.

https://en.wikipedia.org/wiki/1883_eruption_of_Krakatoa
Too simplistic perhaps, but Santorini is estimated at a VEI of 6, same as Krakatoa whereas Tambora is a 7. This would be a high 6 I think

https://en.wikipedia.org/wiki/List_of_large_Holocene_volcanic_eruptions

90 km^3 of volume is between the 18-25 of Krakatoa and 144-213 of Tambora